Description
A Use-After-Free vulnerability has been discovered in GRUB's gettext module. This flaw stems from a programming error where the gettext command remains registered in memory after its module is unloaded. An attacker can exploit this condition by invoking the orphaned command, causing the application to access a memory location that is no longer valid. An attacker could exploit this vulnerability to cause grub to crash, leading to a Denial of Service. Possible data integrity or confidentiality compromise is not discarded.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| GNU | grub2 | ≤ 2.14 | — |
| 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 8.2 Advanced Update Support | — | — |
| 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 Telecommunications Update Service | — | — |
| Red Hat | Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions | — | — |
| 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 9.0 Update Services for SAP Solutions | — | — |
| Red Hat | Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions | — | — |
| Red Hat | Red Hat Enterprise Linux 9.4 Extended Update Support | — | — |
| Red Hat | Red Hat Enterprise Linux 9.6 Extended Update Support | — | — |
| Red Hat | Red Hat OpenShift Container Platform 4.12 | — | — |
| Red Hat | Red Hat OpenShift Container Platform 4.13 | — | — |
| Red Hat | Red Hat OpenShift Container Platform 4.14 | — | — |
| Red Hat | Red Hat OpenShift Container Platform 4.15 | — | — |
| Red Hat | Red Hat OpenShift Container Platform 4.16 | — | — |
| Red Hat | Red Hat OpenShift Container Platform 4.17 | — | — |
| Red Hat | Red Hat OpenShift Container Platform 4.18 | — | — |
| Red Hat | Red Hat OpenShift Container Platform 4.19 | — | — |
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 | grub2 | 2.14-1 | — |
| Debian 13 | grub2 | No fix yet | — |
| Debian 12 | grub2 | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | grub2-signed +1 | No fix yet | — |
| Ubuntu 26.04 LTS | grub2-signed +1 | No fix yet | — |
| Ubuntu 25.10 | grub2-signed +1 | No fix yet | — |
| Ubuntu 24.04 LTS | grub2-signed +1 | No fix yet | — |
| Ubuntu 22.04 LTS | grub2-signed +1 | No fix yet | — |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | grub2-signed +1 | No fix yet | — |
| Ubuntu 18.04 LTS | grub2-signed +1 | No fix yet | — |
| Ubuntu 16.04 LTS | grub2-signed +1 | No fix yet | — |
| Ubuntu Pro 14.04 LTS | grub2 +1 | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10 | grub2 +15 | 1:2.12-29.el10_1.2 | RHSA-2026:4649 |
| RHEL 9 | grub2 +15 | 1:2.06-114.el9_7.1 | RHSA-2026:4760 |
| RHEL 8 | grub2 +18 | 1:2.02-170.el8_10.1 | RHSA-2026:4648 |
Show 14 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10.0 EUS | grub2 +15 | 1:2.12-15.el10_0.2 | RHSA-2026:4652 |
| RHEL 9.6 EUS | grub2 +15 | 1:2.06-105.el9_6.1 | RHSA-2026:4823 |
| RHEL 9.4 EUS | grub2 +15 | 1:2.06-86.el9_4.4 | RHSA-2026:4822 |
| RHEL 9.2 E4S | grub2 +15 | 1:2.06-61.el9_2.11 | RHSA-2026:4900 |
| RHEL 9.0 E4S | grub2 +15 | 1:2.06-27.el9_0.23 | RHSA-2026:5074 |
| RHEL 8.8 TUS | grub2 +15 | 1:2.02-152.el8_8.3 | RHSA-2026:4653 |
| RHEL 8.8 E4S | grub2 +16 | 1:2.02-152.el8_8.3 | RHSA-2026:4653 |
| RHEL 8.6 TUS | grub2 +15 | 1:2.02-123.el8_6.19 | RHSA-2026:4654 |
| RHEL 8.6 E4S | grub2 +18 | 1:2.02-123.el8_6.19 | RHSA-2026:4654 |
| RHEL 8.6 AUS | grub2 +15 | 1:2.02-123.el8_6.19 | RHSA-2026:4654 |
| RHEL 8.4 EUS Long Life | grub2 +15 | 1:2.02-99.el8_4.13 | RHSA-2026:4830 |
| RHEL 8.4 AUS | grub2 +15 | 1:2.02-99.el8_4.13 | RHSA-2026:4830 |
| RHEL 8.2 AUS | grub2 +15 | 1:2.02-87.el8_2.14 | RHSA-2026:4998 |
| RHEL 7 ELS | grub2 +17 | 1:2.02-0.87.el7_9.16 | RHSA-2026:5233 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 10 | grub2-common +4 | 1:2.12-29.el10_1.2.alma.1 | ALSA-2026:4649 |
| AlmaLinux 9 | grub2-pc +14 | 1:2.06-114.el9_7.1.alma.1 | ALSA-2026:4760 |
| AlmaLinux 8 | grub2-pc +17 | 1:2.02-170.el8_10.1.alma.1 | ALSA-2026:4648 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 10 | grub2 | 1:2.12-29.el10_1.2.rocky.0.1 | RLSA-2026:4649 |
| Rocky Linux 9 | grub2 | 1:2.06-114.el9_7.1.rocky.0.1 | RLSA-2026:4760 |
| Rocky Linux 8 | grub2 | 1:2.02-170.el8_10.1.rocky.0.1 | RLSA-2026:4648 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | grub2 | 2.12-150700.19.19.1 | SUSE-SU-2025:4305-1 |
| SLES 15 SP6 | grub2 | 2.12-150600.8.44.2 | SUSE-SU-2025:4196-1 |
| SLES 12 SP5 | grub2 | 2.02-193.1 | SUSE-SU-2025:4197-1 |
Show 8 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 16.0 | grub2 | 2.12-160000.3.1 | SUSE-SU-2025:21212-1 |
| SLES 16.0 | grub2 | 2.12-160000.3.1 | SUSE-SU-2025:21212-1 |
| SLE Micro 6.2 | grub2 | 2.12-160000.3.1 | SUSE-SU-2025:21223-1 |
| SLE Micro 6.1 | grub2 | 2.12-slfo.1.1_3.1 | SUSE-SU-2025:21062-1 |
| SLE Micro 5.5 | grub2 | 2.06-150500.29.59.1 | SUSE-SU-2025:4152-1 |
| SLE Micro 5.4 | grub2 | 2.06-150400.11.66.1 | SUSE-SU-2025:4224-1 |
| SLE Micro 5.3 | grub2 | 2.06-150400.11.66.1 | SUSE-SU-2025:4224-1 |
| SLE Micro 5.2 | grub2 | 2.04-150300.22.61.1 | SUSE-SU-2025:4143-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | grub2 | 2.12-67.1 | openSUSE-SU-2025:15749-1 |
| openSUSE Leap 16.0 | grub2 | 2.12-160000.3.1 | openSUSE-SU-2025:20163-1 |
| openSUSE Leap 15.6 | grub2 | 2.12-150600.8.44.2 | SUSE-SU-2025:4196-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | grub2-pc +16 | 1:2.06-61.amzn2023.0.21 | ALAS2023-2025-1342 |
| Amazon Linux 2 | grub2 +17 | 1:2.06-14.amzn2.0.7 | ALAS2-2025-3107 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | grub2 | 2.06-26 | — |
| Azure Linux 2 (CBL-Mariner) | grub2 | 2.06-16 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 10 | grub2-pc +12 | 1:2.12-29.0.1.el10_1.2 | ELSA-2026-4649 |
| Oracle Linux 9 | grub2-pc +12 | 1:2.06-114.0.1.el9_7.1 | ELSA-2026-4760 |
| Oracle Linux 8 | grub2-pc +15 | 1:2.02-170.0.1.el8_10.1 | ELSA-2026-4648 |
| Oracle Linux 7 | grub2 +12 | 1:2.02-0.87.0.29.el7_9.14 | ELSA-2026-5233 |
Advisories 39
- ALSA-2026:4760 Moderate: grub2 security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:4649 Moderate: grub2 security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:4648 Moderate: grub2 security update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2026:5233 Red Hat Security Advisory: grub2 security update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2026:5074 Red Hat Security Advisory: grub2 security update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2026:4998 Red Hat Security Advisory: grub2 security update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2026:4900 Red Hat Security Advisory: grub2 security update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2026:4830 Red Hat Security Advisory: grub2 security update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2026:4822 Red Hat Security Advisory: grub2 security update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2026:4823 Red Hat Security Advisory: grub2 security update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2026:4760 Red Hat Security Advisory: grub2 security update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2026:4654 Red Hat Security Advisory: grub2 security update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2026:4652 Red Hat Security Advisory: grub2 security update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2026:4653 Red Hat Security Advisory: grub2 security update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2026:4649 Red Hat Security Advisory: grub2 security update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2026:4648 Red Hat Security Advisory: grub2 security update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- WID-SEC-2026-2253 IBM Security Verify Access: Mehrere Schwachstellen BSI CERT-Bund (WID) · Sep 17, 2026
- WID-SEC-2025-2638 Grub: Mehrere Schwachstellen BSI CERT-Bund (WID) · Sep 15, 2026
- RLSA-2026:4649 Moderate: grub2 security update Rocky Linux Security Advisories · May 21, 2026
- RLSA-2026:4760 Moderate: grub2 security update Rocky Linux Security Advisories · May 21, 2026
- RLSA-2026:4648 Moderate: grub2 security update Rocky Linux Security Advisories · May 21, 2026
- WID-SEC-2026-0778 Dell Secure Connect Gateway Policy Manager: Mehrere Schwachstellen BSI CERT-Bund (WID) · May 11, 2026
- ELSA-2026-5233 Moderate: grub2 security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Apr 8, 2026
- openSUSE-SU-2025:20163-1 Security update for grub2 SUSE / openSUSE Security Updates · Mar 23, 2026
- openSUSE-SU-2025:15749-1 grub2-2.12-67.1 on GA media SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:4224-1 Security update for grub2 SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:4197-1 Security update for grub2 SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:21212-1 Security update for grub2 SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:4196-1 Security update for grub2 SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:21223-1 Security update for grub2 SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:21062-1 Security update for grub2 SUSE / openSUSE Security Updates · Mar 23, 2026
- ELSA-2026-4760 Moderate: grub2 security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Mar 18, 2026
- ELSA-2026-4649 Moderate: grub2 security update (Oracle Linux 10) Oracle Linux Security Advisories (ELSA) · Mar 17, 2026
- ELSA-2026-4648 Moderate: grub2 security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Mar 17, 2026
- SUSE-SU-2025:4152-1 Security update for grub2 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:4143-1 Security update for grub2 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:4305-1 Security update for grub2 SUSE / openSUSE Security Updates · Feb 4, 2026
- ALAS2023-2025-1342 Moderate: grub2 security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Jan 7, 2026
- ALAS2-2025-3107 Moderate: grub2 security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Jan 5, 2026
References
- RHSA-2026:10097 vendor-advisory
- RHSA-2026:14773 vendor-advisory
- RHSA-2026:15087 vendor-advisory
- RHSA-2026:17596 vendor-advisory
- RHSA-2026:4648 vendor-advisory
- RHSA-2026:4649 vendor-advisory
- RHSA-2026:4652 vendor-advisory
- RHSA-2026:4653 vendor-advisory
- RHSA-2026:4654 vendor-advisory
- RHSA-2026:4760 vendor-advisory
- RHSA-2026:4822 vendor-advisory
- RHSA-2026:4823 vendor-advisory
- RHSA-2026:4830 vendor-advisory
- RHSA-2026:4900 vendor-advisory
- RHSA-2026:4998 vendor-advisory
- RHSA-2026:5074 vendor-advisory
- RHSA-2026:5127 vendor-advisory
- RHSA-2026:5233 vendor-advisory
- RHSA-2026:6492 vendor-advisory
- RHSA-2026:7239 vendor-advisory
- RHSA-2026:7243 vendor-advisory
- https://access.redhat.com/security/cve/CVE-2025-61662 vdb-entry
- RHBZ#2414683 issue-tracking
- https://lists.gnu.org/archive/html/grub-devel/2025-11/msg00155.html