Description
A flaw was found in the SFTP backend in gvfs. When mounting a share and reading a file, a malicious SFTP server can cause read_reply() to process a length that exceeds the size requested by the client. The function does not verify the server-provided length against the allocated buffer size, causing the operation to write past the intended boundaries. This issue allows a malicious server to corrupt adjacent heap memory in the gvfsd-sftp process, resulting in a denial of service as the process aborts upon detecting the heap corruption or potentially allowing arbitrary code execution.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| GNOME | gvfs | < 1.60.2 | 1.60.2 |
| Red Hat | Red Hat Enterprise Linux 10 | — | — |
| Red Hat | Red Hat Enterprise Linux 10.0 Extended Update Support | — | — |
| Red Hat | Red Hat Enterprise Linux 7 Extended Lifecycle Support | — | — |
| Red Hat | Red Hat Enterprise Linux 8 | — | — |
| Red Hat | Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | — | — |
| Red Hat | Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On | — | — |
| Red Hat | Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | — | — |
| Red Hat | Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On | — | — |
| Red Hat | Red Hat Enterprise Linux 8.8 Telecommunications Update Service | — | — |
| Red Hat | Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions | — | — |
| Red Hat | Red Hat Enterprise Linux 9 | — | — |
| Red Hat | Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions | — | — |
| Red Hat | Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions | — | — |
| Red Hat | Red Hat Enterprise Linux 9.6 Extended Update Support | — | — |
| Red Hat | Red Hat Enterprise Linux 6 | — | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | gvfs | 1.62.0-1 | — |
| Debian 13 | gvfs | No fix yet | — |
| Debian 12 | gvfs | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.04 LTS | gvfs | 1.60.0-1ubuntu0.1 | USN-8845-1 |
| Ubuntu 24.04 LTS | gvfs | 1.54.4-0ubuntu1~24.04.4 | USN-8845-1 |
| Ubuntu 22.04 LTS | gvfs | 1.48.2-0ubuntu1.2 | USN-8845-1 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 20.04 LTS | gvfs | 1.44.1-1ubuntu1.2+esm1 | USN-8845-1 |
| Ubuntu Pro 18.04 LTS | gvfs | 1.36.1-0ubuntu1.3.3+esm1 | USN-8845-1 |
| Ubuntu Pro 16.04 LTS | gvfs | 1.28.2-1ubuntu1~16.04.3+esm1 | USN-8845-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10 | gvfs +6 | 1.54.4-4.el10_2.1 | RHSA-2026:98623, RHSA-2026:73998 |
| RHEL 9 | gvfs +7 | 1.48.1-8.el9_8.1 | RHSA-2026:98513, RHSA-2026:74370 |
| RHEL 8 | gvfs +10 | 1.36.2-22.el8_10 | RHSA-2026:73997 |
Show 11 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10.0 EUS | gvfs +6 | 1.54.4-2.el10_0.2 | RHSA-2026:85941 |
| RHEL 9.6 EUS | gvfs +7 | 1.48.1-6.el9_6.1 | RHSA-2026:85939 |
| RHEL 9.4 E4S | gvfs +7 | 1.48.1-4.el9_4.1 | RHSA-2026:85944 |
| RHEL 9.2 E4S | gvfs +7 | 1.48.1-4.el9_2.1 | RHSA-2026:85942 |
| RHEL 8.8 TUS | gvfs +10 | 1.36.2-14.el8_8.1 | RHSA-2026:85940 |
| RHEL 8.8 E4S | gvfs +10 | 1.36.2-14.el8_8.1 | RHSA-2026:85940 |
| RHEL 8.6 EUS Long Life | gvfs +10 | 1.36.2-11.el8_6.1 | RHSA-2026:85943 |
| RHEL 8.6 AUS | gvfs +10 | 1.36.2-11.el8_6.1 | RHSA-2026:85943 |
| RHEL 8.4 EUS Long Life | gvfs +10 | 1.36.2-11.el8_4.1 | RHSA-2026:85945 |
| RHEL 8.4 AUS | gvfs +10 | 1.36.2-11.el8_4.1 | RHSA-2026:85945 |
| RHEL 7 ELS | gvfs +11 | 1.36.2-7.el7_9.1 | RHSA-2026:86606 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 10 | gvfs +6 | 1.54.4-4.el10_2.1 | ALSA-2026:73998 |
| AlmaLinux 9 | gvfs +7 | 1.48.1-8.el9_8.1 | ALSA-2026:74370 |
| AlmaLinux 8 | gvfs +10 | 1.36.2-22.el8_10 | ALSA-2026:73997 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 10 | gvfs | 1.54.4-4.el10_2.1 | RLSA-2026:98623, RLSA-2026:73998 |
| Rocky Linux 10 | gvfs-goa +5 | 1.54.4-5.el10_3.1 | RLSA-2026:98623 |
| Rocky Linux 9 | gvfs | 1.48.1-8.el9_8.1 | RLSA-2026:98513, RLSA-2026:74370 |
| Rocky Linux 9 | gvfs-goa +6 | 1.48.1-9.el9_9.1 | RLSA-2026:98513 |
| Rocky Linux 8 | gvfs | 1.36.2-22.el8_10 | RLSA-2026:73997 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | gvfs | 1.52.2-150600.3.9.1 | SUSE-SU-2026:4240-1 |
| SLES 15 SP6 | gvfs | 1.52.2-150600.3.9.1 | SUSE-SU-2026:4240-1 |
| SLES 15 SP5 | gvfs | 1.48.2-150400.4.15.1 | SUSE-SU-2026:4238-1 |
| SLES 15 SP4 | gvfs | 1.48.2-150400.4.15.1 | SUSE-SU-2026:4238-1 |
| SLES 12 SP5 | gvfs | 1.28.3-18.12.1 | SUSE-SU-2026:4200-1 |
Show 5 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 SP6 | gvfs | 1.52.2-150600.3.9.1 | SUSE-SU-2026:4240-1 |
| SLES for SAP 15 SP5 | gvfs | 1.48.2-150400.4.15.1 | SUSE-SU-2026:4238-1 |
| SLES for SAP 15 SP4 | gvfs | 1.48.2-150400.4.15.1 | SUSE-SU-2026:4238-1 |
| SLE HPC 15 SP5 | gvfs | 1.48.2-150400.4.15.1 | SUSE-SU-2026:4238-1 |
| SLE HPC 15 SP4 | gvfs | 1.48.2-150400.4.15.1 | SUSE-SU-2026:4238-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | gvfs | 1.60.3-1.1 | openSUSE-SU-2026:11788-1 |
| openSUSE Leap 16.0 | gvfs | 1.59.90-160000.3.1 | openSUSE-SU-2026:21875-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | gvfs +6 | 1.56.1-1.amzn2023.0.3 | ALAS2023-2026-3120 |
| Amazon Linux 2 | gvfs +11 | 1.36.2-3.amzn2.0.3 | ALAS2-2026-3943 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 10 | gvfs +6 | 1.54.4-4.el10_2.1 | ELSA-2026-73998 |
| Oracle Linux 9 | gvfs +7 | 1.48.1-8.el9_8.1 | ELSA-2026-74370 |
| Oracle Linux 8 | gvfs +10 | 1.36.2-22.el8_10 | ELSA-2026-73997 |
| Oracle Linux 7 | gvfs +11 | 1.36.2-7.0.1.el7_9 | ELSA-2026-86606 |
Advisories 34
- RHSA-2026:98623 Red Hat Security Advisory: gvfs security update Red Hat Security Advisories (RHSA) · Nov 13, 2026
- RHSA-2026:98513 Red Hat Security Advisory: gvfs security update Red Hat Security Advisories (RHSA) · Nov 13, 2026
- RHSA-2026:85945 Red Hat Security Advisory: gvfs security update Red Hat Security Advisories (RHSA) · Nov 13, 2026
- RHSA-2026:85944 Red Hat Security Advisory: gvfs security update Red Hat Security Advisories (RHSA) · Nov 13, 2026
- RHSA-2026:85941 Red Hat Security Advisory: gvfs security update Red Hat Security Advisories (RHSA) · Nov 13, 2026
- RHSA-2026:86606 Red Hat Security Advisory: gvfs security update Red Hat Security Advisories (RHSA) · Nov 13, 2026
- RHSA-2026:85940 Red Hat Security Advisory: gvfs security update Red Hat Security Advisories (RHSA) · Nov 13, 2026
- RHSA-2026:85943 Red Hat Security Advisory: gvfs security update Red Hat Security Advisories (RHSA) · Nov 13, 2026
- RHSA-2026:85942 Red Hat Security Advisory: gvfs security update Red Hat Security Advisories (RHSA) · Nov 13, 2026
- RHSA-2026:85939 Red Hat Security Advisory: gvfs security update Red Hat Security Advisories (RHSA) · Nov 13, 2026
- RHSA-2026:74370 Red Hat Security Advisory: gvfs security update Red Hat Security Advisories (RHSA) · Nov 13, 2026
- RLSA-2026:98623 Important: gvfs security update Rocky Linux Security Advisories · Nov 13, 2026
- RLSA-2026:98513 Important: gvfs security update Rocky Linux Security Advisories · Nov 13, 2026
- WID-SEC-2026-3692 Red Hat Enterprise Linux (gvfs): Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 12, 2026
- ELSA-2026-86606 Important: gvfs security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Nov 4, 2026
- ALSA-2026:74370 Important: gvfs security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:73998 Important: gvfs security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:73997 Important: gvfs security update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2026:73997 Red Hat Security Advisory: gvfs security update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2026:73998 Red Hat Security Advisory: gvfs security update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RLSA-2026:74370 Important: gvfs security update Rocky Linux Security Advisories · Oct 2, 2026
- RLSA-2026:73998 Important: gvfs security update Rocky Linux Security Advisories · Oct 1, 2026
- RLSA-2026:73997 Important: gvfs security update Rocky Linux Security Advisories · Oct 1, 2026
- USN-8845-1 gvfs vulnerabilities Ubuntu Security Notices (USN) · Oct 1, 2026
- ELSA-2026-73998 Important: gvfs security update (Oracle Linux 10) Oracle Linux Security Advisories (ELSA) · Oct 1, 2026
- ELSA-2026-74370 Important: gvfs security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Oct 1, 2026
- ELSA-2026-73997 Important: gvfs security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Oct 1, 2026
- ALAS2023-2026-3120 Important: gvfs security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Sep 28, 2026
- ALAS2-2026-3943 Important: gvfs security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Sep 28, 2026
- openSUSE-SU-2026:21875-1 Security update for gvfs SUSE / openSUSE Security Updates · Sep 25, 2026
- SUSE-SU-2026:4238-1 Security update for gvfs SUSE / openSUSE Security Updates · Sep 17, 2026
- SUSE-SU-2026:4240-1 Security update for gvfs SUSE / openSUSE Security Updates · Sep 17, 2026
- SUSE-SU-2026:4200-1 Security update for gvfs SUSE / openSUSE Security Updates · Sep 16, 2026
- openSUSE-SU-2026:11788-1 gvfs-1.60.3-1.1 on GA media SUSE / openSUSE Security Updates · Sep 16, 2026
References
- RHSA-2026:73997 vendor-advisory
- RHSA-2026:73998 vendor-advisory
- RHSA-2026:74370 vendor-advisory
- RHSA-2026:85939 vendor-advisory
- RHSA-2026:85940 vendor-advisory
- RHSA-2026:85941 vendor-advisory
- RHSA-2026:85942 vendor-advisory
- RHSA-2026:85943 vendor-advisory
- RHSA-2026:85944 vendor-advisory
- RHSA-2026:85945 vendor-advisory
- RHSA-2026:86606 vendor-advisory
- RHSA-2026:98513 vendor-advisory
- RHSA-2026:98623 vendor-advisory
- https://access.redhat.com/security/cve/CVE-2026-84268 vdb-entry
- RHBZ#2526485 issue-tracking
- https://gitlab.gnome.org/GNOME/gvfs/-/issues/862