Golang Go: Mehrere Schwachstellen

Summary

Product

Vulnerabilities 15

• Critical 9.8
  CVE-2026-56857

  Root.Mkdir(All) can follow junctions out of the root on Windows in os

  On Windows, when the target of Root.Mkdir or Root.MkdirAll is a junction pointing to an empty location, the operation can create a directory at the junction target even when that target is located outside the root. This only applies to operations where the la…

  Go standard library os internal/syscall/windows golang Windows Ubuntu Azure Linux Alpine Wolfi Go
  Oct 8, 2026
• Critical 9.1
  CVE-2026-78663

  Double flow control refund on HTTP/2 server streams in net/http

  The HTTP/2 server can refund connection-level flow control twice for the same data: Once when a client resets a stream (refunding data for any sent-but-unread portion of the stream), and again when a request handler reads the buffered data. A malicious client…

  Go standard library golang.org/x/net net/http golang.org/x/net/http2 Debian Ubuntu Azure Linux Alpine Wolfi Go
  Oct 8, 2026
• High 7.8
  CVE-2026-94444

  Checksum bypass for golang.org/fips140 in cmd/go

  Previously, a user operating inside of a malicious Go project that defines a bogus golang.org/fips140 and operates a malicious GOMODPROXY the user chooses to connect to can serve an arbitrary module in its place. We now unpack the trusted ziphash for the bund…

  Go toolchain cmd/go golang go Debian Ubuntu Azure Linux Alpine Wolfi Go
  Oct 8, 2026
• High 7.8
  CVE-2026-94447

  Checksum database bypass for golang.org/toolchain in cmd/go

  Previously, a user operating inside of a malicious Go project that defines a bogus golang.org/toolchain go.sum entry and operates a malicious GOMODPROXY the user chooses to use can bypass the intended checksum. We now ensure that golang.org/toolchain always g…

  Go toolchain cmd/go golang go Debian Ubuntu Azure Linux Alpine Wolfi Go
  Oct 8, 2026
• High 7.5
  CVE-2026-56866

  HTTP/1 client connection desynchronization after CONNECT rejection in net/http

  When http.Transport sends an HTTP/1 CONNECT request with a non-empty Request.Body, it writes the body directly to the connection without framing after the request headers. If the server rejects the CONNECT request with a non-2xx keep-alive response, Transport…

  Go standard library net/http net/http/httputil golang Debian Ubuntu Azure Linux Alpine Wolfi Go
  Oct 8, 2026
• High 7.5
  CVE-2026-78659

  HTTP/2 server memory exhaustion due to Trailer headers in net/http

  When "Trailer" headers are sent by a client, the HTTP server internally uses the header values to populate the Request.Trailer map passed to the server handler. Because Request.Trailer is a map, each entry incurs memory overhead. For HTTP/2 servers, a malicio…

  Go standard library golang.org/x/net net/http golang.org/x/net/http2 Debian Ubuntu Azure Linux Alpine Wolfi Go
  Oct 8, 2026
• High 7.5
  CVE-2026-78660

  HTTP/2 transport accepts malformed framing-related headers in net/http

  Historically, we have been rather lax about malformed framing-related headers in our HTTP/2 implementation, as they cannot interfere with HTTP/2 framing. However, this makes it possible for our HTTP/2 implementation to forward responses containing such header…

  Go standard library golang.org/x/net net/http golang.org/x/net/http2 Debian Ubuntu Azure Linux Alpine Wolfi Go
  Oct 8, 2026
• High 7.5
  CVE-2026-78667

  Lack of limit on size of parsed Range headers in net/http

  When parsing a Range header containing a large number of small ranges, FileServer(FS), ServeContent, and ServeFile(FS) can consume an excessive amount of CPU.

  Go standard library net/http golang go Debian Ubuntu Azure Linux Alpine Wolfi Go
  Oct 8, 2026
• High 7.5
  CVE-2026-78669

  Excessive CPU consumption from repeated initial window changes in net/http

  A malicious HTTP/2 peer can cause excessive CPU consumption in the client or server by opening a large number of streams and then sending many small SETTINGS frames containing SETTINGS_INITIAL_WINDOW_SIZE values.

  Go standard library golang.org/x/net net/http golang.org/x/net/http2 Debian Ubuntu Azure Linux Alpine Wolfi Go
  Oct 8, 2026
• High 7.5
  CVE-2026-94439

  HTTP/1 server connection desynchronization after 2xx CONNECT response in net/http

  When an HTTP server handler sends a 2xx response to an HTTP/1 CONNECT request and returns without hijacking the connection, the server improperly continues to read and serve requests from the connection. Since a 2xx response to an HTTP/1 CONNECT converts the …

  Go standard library net/http golang go Debian Ubuntu Azure Linux Alpine Wolfi Go
  Oct 8, 2026
• High 7.5
  CVE-2026-94440

  Memory limit bypass when parsing MIME headers in net/textproto, mime/multipart

  Parsing a multipart form can bypass memory limits and read an arbitrarily long line into memory when the remaining limit at the start of a part is less than 400 bytes.

  Go standard library net/textproto mime/multipart golang Debian Ubuntu Azure Linux Alpine Wolfi Go
  Oct 8, 2026
• High 7.5
  CVE-2026-97031

  Reject malformed ECH outer extension references in crypto/tls

  Multiple ECH outer extension references are not permitted under RFC 9849; previously, a client could send a well-crafted packet that could trigger memory exhaustion in the server process by specifying multiple references. We now reject these as malformed and …

  Go standard library crypto/tls golang go Debian Ubuntu Azure Linux Alpine Wolfi Go
  Oct 8, 2026
• High 7.5
  CVE-2026-97032

  HTTP/2 server crash due to HPACK encoder race in net/http

  HTTP/2 servers could end up crashing due to inadvertently modifying its HPACK encoder concurrently. This happens because the server modifies the HPACK encoder from two goroutines without synchronization: one uses the encoder to encode a HEADERS frame as part …

  Go standard library golang.org/x/net net/http golang.org/x/net/http2 Debian Ubuntu Azure Linux Alpine Wolfi Go
  Oct 8, 2026
• Medium 6.1
  CVE-2026-94448

  Reset context tracking on consecutive template expressions in html/template

  When a JavaScript template literal contains consecutive expressions, the context tracking state was not properly reset upon entering a new expression. We now ensure that template-literal expression entries correctly reset context variables so all subsequent r…

  Go standard library html/template golang go Debian Ubuntu Azure Linux Alpine Wolfi Go
  Oct 8, 2026
• Medium 6.1
  CVE-2026-97030

  Recognize yield as regexp preceder keyword in html/template

  A trusted template author may have previously written a valid template wherein the use of the 'yield' keyword would not be correctly escaped. We now ensure that valid keyword uses are escaped and non-keyword uses are not escaped.

  Go standard library html/template golang go Debian Ubuntu Azure Linux Alpine Wolfi Go
  Oct 8, 2026

Revision history

1. 2026-11-12 #23

   Neue Updates von openSUSE und Red Hat aufgenommen

2. 2026-11-11 #22

   Neue Updates von Red Hat aufgenommen

3. 2026-11-10 #21

   Neue Updates von Red Hat aufgenommen

4. 2026-11-09 #20

   Neue Updates von IBM und SUSE aufgenommen

5. 2026-11-08 #19

   Neue Updates von Zabbix und Red Hat aufgenommen

6. 2026-11-05 #18

   Neue Updates von SUSE, openSUSE, Red Hat und Oracle Linux aufgenommen

7. 2026-11-04 #17

   Neue Updates von Red Hat aufgenommen

8. 2026-11-03 #16

   Neue Updates von Red Hat aufgenommen

9. 2026-11-02 #15

   Neue Updates von Rocky Enterprise Software Foundation aufgenommen

10. 2026-11-01 #14

    Neue Updates von Red Hat und Amazon aufgenommen

11. 2026-10-29 #13

    Neue Updates von Red Hat und openSUSE aufgenommen

12. 2026-10-28 #12

    Neue Updates von Oracle Linux aufgenommen

13. 2026-10-27 #11

    Neue Updates von Red Hat, Oracle Linux und openSUSE aufgenommen

14. 2026-10-26 #10

    Neue Updates von Red Hat, SUSE und Oracle Linux aufgenommen

15. 2026-10-25 #9

    Neue Updates von Amazon, Oracle Linux und Red Hat aufgenommen

16. 2026-10-22 #8

    Neue Updates von Rocky Enterprise Software Foundation, Oracle Linux, Red Hat, SUSE und openSUSE aufgenommen

17. 2026-10-21 #7

    Neue Updates von Rocky Enterprise Software Foundation und Oracle Linux aufgenommen

18. 2026-10-20 #6

    Neue Updates von SUSE, Red Hat, openSUSE und Rocky Enterprise Software Foundation aufgenommen

19. 2026-10-18 #5

    Neue Updates von openSUSE aufgenommen

20. 2026-10-13 #4

    Neue Updates aufgenommen

21. 2026-10-12 #3

    Neue Updates von SUSE aufgenommen

22. 2026-10-11 #2

    Neue Updates von Red Hat aufgenommen

23. 2026-10-08 #1

    Initiale Fassung

References

• Google Security Announce vom 2026-10-08
  https://groups.google.com/g/golang-announce/c/U2fTuyDJznI
• OSS Mailing List vom 2026-10-08
  https://seclists.org/oss-sec/2026/q4/101
• Red Hat Security Advisory RHSA-2026:79720 vom 2026-10-10
  https://access.redhat.com/errata/RHSA-2026:79720
• Red Hat Security Advisory RHSA-2026:79715 vom 2026-10-09
  https://access.redhat.com/errata/RHSA-2026:79715
• SUSE Security Update SUSE-SU-2026:4629-1 vom 2026-10-12
  https://lists.suse.com/pipermail/sle-security-updates/2026-October/029777.html
• SUSE Security Update SUSE-SU-2026:4625-1 vom 2026-10-12
  https://lists.suse.com/pipermail/sle-security-updates/2026-October/029773.html
• Microsoft Security Update Guide vom 2026-10-14
  https://msrc.microsoft.com/update-guide/
• openSUSE Security Update OPENSUSE-SU-2026:22093-1 vom 2026-10-18
  https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/GS6AZGNLD7SHYDYLGGHF3EUAEC25U43Z/
• openSUSE Security Update OPENSUSE-SU-2026:22095-1 vom 2026-10-18
  https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/HGRVKXQPCR36O4WZPQVQL2RAYNVYHLUQ/
• SUSE Security Update SUSE-SU-2026:24239-1 vom 2026-10-20
  https://lists.suse.com/pipermail/sle-security-updates/2026-October/029925.html
• Red Hat Security Advisory RHSA-2026:86093 vom 2026-10-21
  https://access.redhat.com/errata/RHSA-2026:86093
• Red Hat Security Advisory RHSA-2026:86203 vom 2026-10-21
  https://access.redhat.com/errata/RHSA-2026:86203
• Red Hat Security Advisory RHSA-2026:86196 vom 2026-10-21
  https://access.redhat.com/errata/RHSA-2026:86196
• openSUSE Security Update OPENSUSE-SU-2026:22134-1 vom 2026-10-20
  https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/VER4TT3MYBB2462DDSDD5T7QU6DJDHMO/
• Rocky Linux Security Advisory RLSA-2026:86203 vom 2026-10-21
  https://errata.build.resf.org/RLSA-2026:86203
• SUSE Security Update SUSE-SU-2026:24237-1 vom 2026-10-20
  https://lists.suse.com/pipermail/sle-security-updates/2026-October/029926.html
• Rocky Linux Security Advisory RLSA-2026:86196 vom 2026-10-22
  https://errata.build.resf.org/RLSA-2026:86196
• Oracle Linux Security Advisory ELSA-2026-86196 vom 2026-10-21
  https://linux.oracle.com/errata/ELSA-2026-86196.html
• Rocky Linux Security Advisory RLSA-2026:86093 vom 2026-10-22
  https://errata.build.resf.org/RLSA-2026:86093
• Oracle Linux Security Advisory ELSA-2026-86093 vom 2026-10-21
  https://linux.oracle.com/errata/ELSA-2026-86093.html
• Red Hat Security Advisory RHSA-2026:88188 vom 2026-10-22
  https://access.redhat.com/errata/RHSA-2026:88188
• Rocky Linux Security Advisory RLSA-2026:88354 vom 2026-10-23
  https://errata.build.resf.org/RLSA-2026:88354
• Oracle Linux Security Advisory ELSA-2026-88189 vom 2026-10-23
  https://linux.oracle.com/errata/ELSA-2026-88189.html
• Oracle Linux Security Advisory ELSA-2026-88188 vom 2026-10-23
  https://linux.oracle.com/errata/ELSA-2026-88188.html
• Red Hat Security Advisory RHSA-2026:88189 vom 2026-10-22
  https://access.redhat.com/errata/RHSA-2026:88189
• Red Hat Security Advisory RHSA-2026:88316 vom 2026-10-22
  https://access.redhat.com/errata/RHSA-2026:88316
• Red Hat Security Advisory RHSA-2026:88336 vom 2026-10-22
  https://access.redhat.com/errata/RHSA-2026:88336
• SUSE Security Update SUSE-SU-2026:4867-1 vom 2026-10-22
  https://lists.suse.com/pipermail/sle-security-updates/2026-October/030035.html
• SUSE Security Update SUSE-SU-2026:4864-1 vom 2026-10-22
  https://lists.suse.com/pipermail/sle-security-updates/2026-October/030036.html
• SUSE Security Update SUSE-SU-2026:4866-1 vom 2026-10-22
  https://lists.suse.com/pipermail/sle-security-updates/2026-October/030040.html
• openSUSE Security Update OPENSUSE-SU-2026:12101-1 vom 2026-10-22
  https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/TUIXDB76D2LAS7RN23WLHXBDDV7KBPUX/
• openSUSE Security Update OPENSUSE-SU-2026:12093-1 vom 2026-10-22
  https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/GGGX7CCPG6EH5PXRRMYKRKVROOVA7UWV/
• Oracle Linux Security Advisory ELSA-2026-88354 vom 2026-10-23
  https://linux.oracle.com/errata/ELSA-2026-88354.html
• Oracle Linux Security Advisory ELSA-2026-88336 vom 2026-10-23
  https://linux.oracle.com/errata/ELSA-2026-88336.html
• Rocky Linux Security Advisory RLSA-2026:88188 vom 2026-10-23
  https://errata.build.resf.org/RLSA-2026:88188
• Rocky Linux Security Advisory RLSA-2026:88189 vom 2026-10-23
  https://errata.build.resf.org/RLSA-2026:88189
• Oracle Linux Security Advisory ELSA-2026-88316 vom 2026-10-23
  https://linux.oracle.com/errata/ELSA-2026-88316.html
• Amazon Linux Security Advisory ALAS2NITRO-ENCLAVES-2026-127 vom 2026-10-25
  https://alas.aws.amazon.com/AL2/ALAS2NITRO-ENCLAVES-2026-127.html
• Oracle Linux Security Advisory ELSA-2026-86203 vom 2026-10-23
  http://linux.oracle.com/errata/ELSA-2026-86203.html
• Red Hat Security Advisory RHSA-2026:89031 vom 2026-10-25
  https://access.redhat.com/errata/RHSA-2026:89031
• Red Hat Security Advisory RHSA-2026:89041 vom 2026-10-25
  https://access.redhat.com/errata/RHSA-2026:89041
• Red Hat Security Advisory RHSA-2026:89081 vom 2026-10-25
  https://access.redhat.com/errata/RHSA-2026:89081
• Red Hat Security Advisory RHSA-2026:89131 vom 2026-10-25
  https://access.redhat.com/errata/RHSA-2026:89131
• Red Hat Security Advisory RHSA-2026:89732 vom 2026-10-26
  https://access.redhat.com/errata/RHSA-2026:89732
• Red Hat Security Advisory RHSA-2026:89760 vom 2026-10-26
  https://access.redhat.com/errata/RHSA-2026:89760
• Amazon Linux Security Advisory ALAS2-2026-4005 vom 2026-10-25
  https://alas.aws.amazon.com/AL2/ALAS2-2026-4005.html
• Amazon Linux Security Advisory ALAS2-2026-4017 vom 2026-10-25
  https://alas.aws.amazon.com/AL2/ALAS2-2026-4017.html
• Amazon Linux Security Advisory ALAS2-2026-4018 vom 2026-10-25
  https://alas.aws.amazon.com/AL2/ALAS2-2026-4018.html
• Amazon Linux Security Advisory ALAS2-2026-4042 vom 2026-10-25
  https://alas.aws.amazon.com/AL2/ALAS2-2026-4042.html
• Amazon Linux Security Advisory ALAS2DOCKER-2026-151 vom 2026-10-25
  https://alas.aws.amazon.com/AL2/ALAS2DOCKER-2026-151.html
• Amazon Linux Security Advisory ALAS2DOCKER-2026-150 vom 2026-10-25
  https://alas.aws.amazon.com/AL2/ALAS2DOCKER-2026-150.html
• Amazon Linux Security Advisory ALAS2DOCKER-2026-148 vom 2026-10-25
  https://alas.aws.amazon.com/AL2/ALAS2DOCKER-2026-148.html
• Amazon Linux Security Advisory ALAS2DOCKER-2026-149 vom 2026-10-25
  https://alas.aws.amazon.com/AL2/ALAS2DOCKER-2026-149.html
• Amazon Linux Security Advisory ALAS2DOCKER-2026-152 vom 2026-10-25
  https://alas.aws.amazon.com/AL2/ALAS2DOCKER-2026-152.html
• Amazon Linux Security Advisory ALAS2DOCKER-2026-153 vom 2026-10-25
  https://alas.aws.amazon.com/AL2/ALAS2DOCKER-2026-153.html
• Amazon Linux Security Advisory ALAS2ECS-2026-145 vom 2026-10-25
  https://alas.aws.amazon.com/AL2/ALAS2ECS-2026-145.html
• Amazon Linux Security Advisory ALAS2ECS-2026-146 vom 2026-10-25
  https://alas.aws.amazon.com/AL2/ALAS2ECS-2026-146.html
• Amazon Linux Security Advisory ALAS2ECS-2026-147 vom 2026-10-25
  https://alas.aws.amazon.com/AL2/ALAS2ECS-2026-147.html
• Amazon Linux Security Advisory ALAS2NITRO-ENCLAVES-2026-124 vom 2026-10-25
  https://alas.aws.amazon.com/AL2/ALAS2NITRO-ENCLAVES-2026-124.html
• Amazon Linux Security Advisory ALAS2ECS-2026-148 vom 2026-10-25
  https://alas.aws.amazon.com/AL2/ALAS2ECS-2026-148.html
• Amazon Linux Security Advisory ALAS2ECS-2026-149 vom 2026-10-25
  https://alas.aws.amazon.com/AL2/ALAS2ECS-2026-149.html
• Amazon Linux Security Advisory ALAS2NITRO-ENCLAVES-2026-125 vom 2026-10-25
  https://alas.aws.amazon.com/AL2/ALAS2NITRO-ENCLAVES-2026-125.html
• Amazon Linux Security Advisory ALAS2NITRO-ENCLAVES-2026-126 vom 2026-10-25
  https://alas.aws.amazon.com/AL2/ALAS2NITRO-ENCLAVES-2026-126.html
• Red Hat Security Advisory RHSA-2026:89885 vom 2026-10-26
  https://access.redhat.com/errata/RHSA-2026:89885
• openSUSE Security Update OPENSUSE-SU-2026:12112-1 vom 2026-10-24
  https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/RIDXAHW565ZQXJKC677BUJOMLHVJKNXF/
• Red Hat Security Advisory RHSA-2026:89740 vom 2026-10-26
  https://access.redhat.com/errata/RHSA-2026:89740
• Red Hat Security Advisory RHSA-2026:89884 vom 2026-10-26
  https://access.redhat.com/errata/RHSA-2026:89884
• Rocky Linux Security Advisory RLSA-2026:88262 vom 2026-10-23
  https://errata.build.resf.org/RLSA-2026:88262
• Red Hat Security Advisory RHSA-2026:89888 vom 2026-10-26
  https://access.redhat.com/errata/RHSA-2026:89888
• Rocky Linux Security Advisory RLSA-2026:88316 vom 2026-10-23
  https://errata.build.resf.org/RLSA-2026:88316
• Red Hat Security Advisory RHSA-2026:89761 vom 2026-10-26
  https://access.redhat.com/errata/RHSA-2026:89761
• Red Hat Security Advisory RHSA-2026:89744 vom 2026-10-26
  https://access.redhat.com/errata/RHSA-2026:89744
• Red Hat Security Advisory RHSA-2026:89751 vom 2026-10-26
  https://access.redhat.com/errata/RHSA-2026:89751
• Rocky Linux Security Advisory RLSA-2026:88280 vom 2026-10-23
  https://errata.build.resf.org/RLSA-2026:88280
• Red Hat Security Advisory RHSA-2026:89752 vom 2026-10-26
  https://access.redhat.com/errata/RHSA-2026:89752
• Red Hat Security Advisory RHSA-2026:89741 vom 2026-10-26
  https://access.redhat.com/errata/RHSA-2026:89741
• SUSE Security Update SUSE-SU-2026:4891-1 vom 2026-10-23
  https://lists.suse.com/pipermail/sle-security-updates/2026-October/030053.html
• openSUSE Security Update OPENSUSE-SU-2026:12129-1 vom 2026-10-25
  https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/THUOAWUAROR5QM2LNUMTEWX3UKWJCLIQ/
• openSUSE Security Update OPENSUSE-SU-2026:22152-1 vom 2026-10-23
  https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/RSGCEWW6QPBMLQ2LSFYRL6GDZ7GHS4GY/
• openSUSE Security Update OPENSUSE-SU-2026:0353-1 vom 2026-10-23
  https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/O263XYD7DT3P6Y5SUOBT353IRBWDBLG3/