Description
Calling wordexp with WRDE_REUSE in conjunction with WRDE_APPEND in the GNU C Library version 2.0 to version 2.42 may cause the interface to return uninitialized memory in the we_wordv member, which on subsequent calls to wordfree may abort the process.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| The GNU C Library | glibc | 2.0 – ≤ 2.42 | — |
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 | glibc | 2.42-11 | — |
| Debian 13 | glibc | 2.41-12+deb13u2 | — |
| Debian 12 | glibc | 2.36-9+deb12u14 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.04 LTS | glibc | 2.42-2ubuntu5 | — |
| Ubuntu 25.10 | glibc | 2.42-0ubuntu3.1 | — |
| Ubuntu 24.04 LTS | glibc | 2.39-0ubuntu8.7 | — |
| Ubuntu 22.04 LTS | glibc | 2.35-0ubuntu3.13 | — |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 20.04 LTS | glibc | 2.31-0ubuntu9.18+esm1 | — |
| Ubuntu Pro 18.04 LTS | glibc | 2.27-3ubuntu1.6+esm6 | — |
| Ubuntu Pro 16.04 LTS | glibc | 2.23-0ubuntu11.3+esm9 | — |
| Ubuntu Pro 14.04 LTS | eglibc | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10 | glibc +220 | 2.39-113.el10 | RHSA-2026:18139 |
| RHEL 9 | glibc +1 | 2.34-231.el9_7.10 | RHSA-2026:2786 |
| RHEL 8 | nscd +213 | 2.28-251.el8_10.31 | RHSA-2026:4772 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Hardened Images 1 | glibc +223 | 2.42-11.1.hum1 | RHSA-2026:7316 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 9 | nscd +214 | 2.34-231.el9_7.10 | ALSA-2026:2786 |
| AlmaLinux 8 | nscd +94 | 2.28-251.el8_10.31 | ALSA-2026:4772 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 9 | glibc | 2.34-231.el9_7.10 | RLSA-2026:2786 |
| Rocky Linux 8 | glibc | 2.28-251.el8_10.31 | RLSA-2026:4772 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | glibc | 2.38-150600.14.40.1 | SUSE-SU-2026:0371-1 |
| SLES 15 SP6 | glibc | 2.38-150600.14.40.1 | SUSE-SU-2026:0371-1 |
| SLES 15 SP5 | glibc | 2.31-150300.98.1 | SUSE-SU-2026:0896-1 |
| SLES 15 SP4 | glibc | 2.31-150300.98.1 | SUSE-SU-2026:0896-1 |
| SLES 12 SP5 | glibc | 2.22-114.43.1 | SUSE-SU-2026:0680-1 |
Show 14 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 16.0 | glibc | 2.40-160000.3.1 | SUSE-SU-2026:20198-1 |
| SLES for SAP 15 SP6 | glibc | 2.38-150600.14.40.1 | SUSE-SU-2026:0371-1 |
| SLES for SAP 15 SP5 | glibc | 2.31-150300.98.1 | SUSE-SU-2026:0896-1 |
| SLES for SAP 15 SP4 | glibc | 2.31-150300.98.1 | SUSE-SU-2026:0896-1 |
| SLES 16.0 | glibc | 2.40-160000.3.1 | SUSE-SU-2026:20198-1 |
| SLE Micro 6.2 | glibc | 2.40-160000.3.1 | SUSE-SU-2026:20563-1, SUSE-SU-2026:20178-1 |
| SLE Micro 6.1 | glibc | 2.38-slfo.1.1_6.1 | SUSE-SU-2026:20536-1 |
| SLE Micro 6.0 | glibc | 2.38-11.1 | SUSE-SU-2026:20527-1 |
| SLE Micro 5.5 | glibc | 2.31-150300.98.1 | SUSE-SU-2026:0896-1 |
| SLE Micro 5.4 | glibc | 2.31-150300.98.1 | SUSE-SU-2026:0896-1 |
| SLE Micro 5.3 | glibc | 2.31-150300.98.1 | SUSE-SU-2026:0896-1 |
| SLE Micro 5.2 | glibc | 2.31-150300.98.1 | SUSE-SU-2026:0896-1 |
| SLE HPC 15 SP5 | glibc | 2.31-150300.98.1 | SUSE-SU-2026:0896-1 |
| SLE HPC 15 SP4 | glibc | 2.31-150300.98.1 | SUSE-SU-2026:0896-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | glibc | 2.43-1.1 | openSUSE-SU-2026:10662-1 |
| openSUSE Leap 16.0 | glibc +4 | 2.40-160000.3.1 | openSUSE-SU-2026:20133-1 |
| openSUSE Leap 15.6 | glibc | 2.38-150600.14.40.1 | SUSE-SU-2026:0371-1 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | glibc | 2.38-18 | — |
| Azure Linux 2 (CBL-Mariner) | glibc | 2.35-10 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 10 | glibc +220 | 2.39-126.0.1.el10_2 | ELSA-2026-18139 |
| Oracle Linux 9 | nscd +214 | 2.34-231.0.1.el9_7.10 | ELSA-2026-2786 |
| Oracle Linux 8 | nscd +213 | 2.28-251.0.4.el8_10.31 | ELSA-2026-4772 |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | glibc | 2.42-r7 | — |
Advisories 27
- WID-SEC-2026-2189 Dell PowerProtect Data Domain: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 2, 2026
- ALSA-2026:2786 Moderate: glibc security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:4772 Moderate: glibc security update AlmaLinux Security Advisories · Oct 29, 2026
- WID-SEC-2026-1007 IBM App Connect Enterprise: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 25, 2026
- RHSA-2026:7316 Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update Red Hat Security Advisories (RHSA) · Oct 15, 2026
- RHSA-2026:4772 Red Hat Security Advisory: glibc security update Red Hat Security Advisories (RHSA) · Oct 15, 2026
- RHSA-2026:2786 Red Hat Security Advisory: glibc security update Red Hat Security Advisories (RHSA) · Oct 15, 2026
- RHSA-2026:18139 Red Hat Security Advisory: glibc security update Red Hat Security Advisories (RHSA) · Oct 15, 2026
- WID-SEC-2026-0179 GNU libc: Schwachstelle ermöglicht Denial of Service BSI CERT-Bund (WID) · Sep 23, 2026
- WID-SEC-2026-3038 Meinberg LANTIME: Mehrere Schwachstellen BSI CERT-Bund (WID) · Aug 26, 2026
- ELSA-2026-18139 Moderate: glibc security update (Oracle Linux 10) Oracle Linux Security Advisories (ELSA) · Jul 20, 2026
- SUSE-SU-2026:20563-1 Security update for glibc SUSE / openSUSE Security Updates · Jul 9, 2026
- VDE-2026-064 METTLER TOLEDO: LabX Standard Report on External Component Analysis - v21.3 CERT@VDE · Jun 9, 2026
- WID-SEC-2026-0778 Dell Secure Connect Gateway Policy Manager: Mehrere Schwachstellen BSI CERT-Bund (WID) · May 11, 2026
- openSUSE-SU-2026:10662-1 glibc-2.43-1.1 on GA media SUSE / openSUSE Security Updates · May 1, 2026
- RLSA-2026:4772 Moderate: glibc security update Rocky Linux Security Advisories · Mar 24, 2026
- openSUSE-SU-2026:20133-1 Security update for glibc SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2026:20527-1 Security update for glibc SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2026:20198-1 Security update for glibc SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2026:20178-1 Security update for glibc SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2026:0680-1 Security update for glibc SUSE / openSUSE Security Updates · Mar 23, 2026
- ELSA-2026-4772 Moderate: glibc security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Mar 19, 2026
- SUSE-SU-2026:0896-1 Security update for glibc SUSE / openSUSE Security Updates · Mar 14, 2026
- SUSE-SU-2026:20536-1 Security update for glibc SUSE / openSUSE Security Updates · Mar 4, 2026
- RLSA-2026:2786 Moderate: glibc security update Rocky Linux Security Advisories · Feb 24, 2026
- ELSA-2026-2786 Moderate: glibc security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Feb 17, 2026
- SUSE-SU-2026:0371-1 Security update for glibc SUSE / openSUSE Security Updates · Feb 4, 2026