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OpenAdvisories
Critical RHSA-2026:84572 6 CVEs

Red Hat Security Advisory: openssl security update

Published Oct 19, 2026 · Updated Oct 20, 2026

Ecosystem: Red Hat

Fixed packages 6

ReleasePackageFixed in
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::appstream openssl-debuginfo 1:3.0.7-18.el9_2.4
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::appstream openssl-debugsource 1:3.0.7-18.el9_2.4
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::baseos openssl 1:3.0.7-18.el9_2.4
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::baseos openssl-debuginfo 1:3.0.7-18.el9_2.4
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::baseos openssl-debugsource 1:3.0.7-18.el9_2.4
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::baseos openssl-libs 1:3.0.7-18.el9_2.4

Vulnerabilities 6

  • Critical 9.1
    CVE-2026-34182

    CMS AuthEnvelopedData Processing May Accept Forged Messages

    Issue Summary: Cryptographic Message Services (CMS) processing fails to perform sufficient input validation on the cipher and tag length fields of AuthEnvelopedData containers, leading to various potential compromises. Impact Summary: Attackers making use of …

    OpenSSL OpenSSL openssl openssl Debian Ubuntu Azure Linux Alpine Wolfi
  • High 8.8
    CVE-2026-45447 Public exploit

    Heap Use-After-Free in the PKCS7_verify() Function

    Issue summary: A specially crafted PKCS#7 or S/MIME signed message could trigger a use-after-free during PKCS#7 signature verification. Impact summary: A use-after-free may result in process crashes, heap corruption, or potentially remote code execution. When…

    OpenSSL OpenSSL openssl nodejs Debian Ubuntu Azure Linux Alpine Wolfi
  • High 7.5
    CVE-2026-28390

    Possible NULL Dereference When Processing CMS KeyTransportRecipientInfo

    Issue summary: During processing of a crafted CMS EnvelopedData message with KeyTransportRecipientInfo a NULL pointer dereference can happen. Impact summary: Applications that process attacker-controlled CMS data may crash before authentication or cryptograph…

    OpenSSL OpenSSL openssl nodejs Debian Ubuntu Azure Linux Alpine Wolfi
  • High 7.5
    CVE-2026-31790

    Incorrect Failure Handling in RSA KEM RSASVE Encapsulation

    Issue summary: Applications using RSASVE key encapsulation to establish a secret encryption key can send contents of an uninitialized memory buffer to a malicious peer. Impact summary: The uninitialized buffer might contain sensitive data from the previous ex…

    OpenSSL OpenSSL openssl openssl Debian Ubuntu Azure Linux Alpine Wolfi
  • High 7.5
    CVE-2026-45445

    AES-OCB IV Ignored on EVP_Cipher() Path

    Issue summary: When an application drives an AES-OCB context through the public EVP_Cipher() one-shot interface, the application-supplied initialisation vector (IV) is silently discarded. Impact summary: Every message encrypted under the same key uses the sam…

    OpenSSL OpenSSL openssl nodejs Debian Ubuntu Azure Linux Alpine Wolfi
  • Medium 4.0
    CVE-2025-69418

    Unauthenticated/unencrypted trailing bytes with low-level OCB function calls

    Issue summary: When using the low-level OCB API directly with AES-NI or<br>other hardware-accelerated code paths, inputs whose length is not a multiple<br>of 16 bytes can leave the final partial block unencrypted and unauthenticated.<br><br>Impact summary: Th…

    OpenSSL OpenSSL openssl nodejs Debian Ubuntu Azure Linux Alpine Wolfi

References

  • article
    https://access.redhat.com/security/updates/classification/#important
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2430381
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2451094
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2456314
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2481884
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2481896
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2481898
  • advisory
    https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_84572.json
  • report
    https://access.redhat.com/security/cve/CVE-2025-69418
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2025-69418
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2025-69418
  • report
    https://access.redhat.com/security/cve/CVE-2026-28390
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-28390
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-28390
  • article
    https://github.com/openssl/openssl/commit/01194a8f1941115cd0383bfa91c736dd3993c8bc
  • article
    https://github.com/openssl/openssl/commit/2e39b7a6993be445fddb9fbce316fa756e0397b6
  • article
    https://github.com/openssl/openssl/commit/af2a5fecd3e71a29e7568f9c1453dec5cebbaff4
  • article
    https://github.com/openssl/openssl/commit/ea7b4ea4f9f853521ba34830cbcadc970d2e0788
  • article
    https://github.com/openssl/openssl/commit/fd2f1a6cf53b9ceeca723a001aa4b825d7c7ee75
  • article
    https://openssl-library.org/news/secadv/20260407.txt
  • report
    https://access.redhat.com/security/cve/CVE-2026-31790
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-31790
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-31790
  • report
    https://access.redhat.com/security/cve/CVE-2026-34182
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-34182
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-34182
  • report
    https://access.redhat.com/security/cve/CVE-2026-45445
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-45445
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-45445
  • report
    https://access.redhat.com/security/cve/CVE-2026-45447
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-45447
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-45447