Description
When loading a plist file, the plistlib module reads data in size specified by the file itself, meaning a malicious file can cause OOM and DoS issues
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Python Software Foundation | CPython | < 3.10.20, 3.11.0 – < 3.11.15, 3.12.0 – < 3.12.13, 3.13.0 – < 3.13.10, 3.14.0 – < 3.14.1, 3.15.0a1 – < 3.15.0a3 | 3.10.20 |
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 | pypy3 | 7.3.21+dfsg-1 | — |
| Debian 14 | python3.14 | 3.14.2-1 | — |
| Debian 13 | pypy3 | No fix yet | — |
| Debian 13 | python3.13 | 3.13.5-2+deb13u1 | — |
| Debian 12 | pypy3 | No fix yet | — |
| Debian 12 | python3.11 | 3.11.2-6+deb12u7 | — |
| Debian 11 | python3.9 | 3.9.2-1+deb11u4 | DLA-4445-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 25.10 | python3.13 | 3.13.7-1ubuntu0.3 | — |
| Ubuntu 25.10 | python3.14 | 3.14.0-1ubuntu0.2 | — |
| Ubuntu 24.04 LTS | python3.12 | 3.12.3-1ubuntu0.11 | — |
| Ubuntu 22.04 LTS | python2.7 | No fix yet | — |
| Ubuntu 22.04 LTS | python3.10 | 3.10.12-1~22.04.14 | — |
Show 5 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 22.04 LTS | python3.11 | 3.11.0~rc1-1~22.04.1~esm8 | — |
| Ubuntu Pro 20.04 LTS | python2.7 | No fix yet | — |
| Ubuntu Pro 20.04 LTS | python3.8 | 3.8.10-0ubuntu1~20.04.18+esm5 | — |
| Ubuntu Pro 20.04 LTS | python3.9 | 3.9.5-3ubuntu0~20.04.1+esm9 | — |
| Ubuntu Pro 18.04 LTS | python2.7 | No fix yet | — |
| Ubuntu Pro 18.04 LTS | python3.6 | 3.6.9-1~18.04ubuntu1.13+esm8 | — |
| Ubuntu Pro 18.04 LTS | python3.7 | 3.7.5-2ubuntu1~18.04.2+esm9 | — |
| Ubuntu Pro 18.04 LTS | python3.8 | 3.8.0-3ubuntu1~18.04.2+esm9 | — |
| Ubuntu Pro 16.04 LTS | python2.7 | No fix yet | — |
| Ubuntu Pro 16.04 LTS | python3.5 | 3.5.2-2ubuntu0~16.04.13+esm21 | — |
| Ubuntu Pro 14.04 LTS | python2.7 +1 | No fix yet | — |
| Ubuntu Pro 14.04 LTS | python3.5 | 3.5.2-2ubuntu0~16.04.4~14.04.1+esm9 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10 | python3 +8 | 3.12.13-2.el10_2 | RHSA-2026:19064 |
| RHEL 9 | python3.12 +6 | 3.12.13-2.el9_8 | RHSA-2026:19177 |
| RHEL 8 | python3.12 +7 | 3.12.13-2.el8_10 | RHSA-2026:10950 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Hardened Images 1 | python3 +15 | 3.14.4-1.hum1 | RHSA-2026:7661 |
| Red Hat Hardened Images 1 | python3.11 +6 | 3.11.15-4.hum1 | RHSA-2026:8822 |
| Red Hat Hardened Images 1 | python3.12 +6 | 3.12.13-3.hum1 | RHSA-2026:8824 |
| Red Hat Hardened Images 1 | python3.13 +8 | 3.13.13-1.hum1 | RHSA-2026:7443 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 10 | python3 +7 | 3.12.13-2.el10_2 | ALSA-2026:19064 |
| AlmaLinux 9 | python3.12 +6 | 3.12.13-2.el9_8 | ALSA-2026:19177 |
| AlmaLinux 8 | python3.12 +7 | 3.12.13-2.el8_10 | ALSA-2026:10950 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 10 | python3.12 | 3.12.13-2.el10_2 | RLSA-2026:19064 |
| Rocky Linux 9 | python3.12 | 3.12.13-2.el9_8 | RLSA-2026:19177 |
| Rocky Linux 8 | python3.12 | 3.12.13-2.el8_10 | RLSA-2026:10950 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | python3 +1 | 3.6.15-150300.10.103.1 | SUSE-SU-2026:0027-1 |
| SLES 15 SP7 | python311-core | 3.11.14-150600.3.41.2 | SUSE-SU-2026:1349-1, SUSE-SU-2026:0314-1 |
| SLES 15 SP6 | python311 +1 | 3.11.15-150600.3.53.1 | SUSE-SU-2026:1349-1 |
| SLES 15 SP5 | python311 +2 | 3.11.14-150400.9.72.1 | SUSE-SU-2026:1117-1, SUSE-SU-2026:0299-1 |
| SLES 15 SP4 | python311 +2 | 3.11.14-150400.9.72.1 | SUSE-SU-2026:1117-1, SUSE-SU-2026:0299-1 |
| SLES 12 SP5 | python3 +1 | 3.4.10-25.166.1 | SUSE-SU-2025:4538-1 |
| SLES 12 SP5 | python36 +1 | 3.6.15-97.1 | SUSE-SU-2025:4539-1 |
Show 15 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 3 | python311 +1 | 3.11.14-150600.3.41.2 | SUSE-SU-2026:1349-1, SUSE-SU-2026:0314-1 |
| SLES 3 | python313 +1 | 3.13.11-150700.4.36.1 | SUSE-SU-2026:0024-1 |
| SLES for SAP 16.0 | python313 +2 | 3.13.11-160000.1.1 | SUSE-SU-2026:20125-1 |
| SLES for SAP 15 SP6 | python311 +1 | 3.11.15-150600.3.53.1 | SUSE-SU-2026:1349-1 |
| SLES for SAP 15 SP5 | python311 +2 | 3.11.14-150400.9.72.1 | SUSE-SU-2026:1117-1, SUSE-SU-2026:0299-1 |
| SLES for SAP 15 SP4 | python311 +2 | 3.11.14-150400.9.72.1 | SUSE-SU-2026:1117-1, SUSE-SU-2026:0299-1 |
| SLES 16.0 | python313 +2 | 3.13.11-160000.1.1 | SUSE-SU-2026:20125-1 |
| SLE Micro 6.2 | python313 +1 | 3.13.11-160000.1.1 | SUSE-SU-2026:20154-1 |
| SLE Micro 6.1 | python311 +1 | 3.11.14-slfo.1.1_2.1 | SUSE-SU-2026:20768-1, SUSE-SU-2026:20374-1 |
| SLE Micro 6.0 | python311 +1 | 3.11.14-2.1 | SUSE-SU-2026:20796-1, SUSE-SU-2026:20047-1 |
| SLE Micro 5.5 | python3 +1 | 3.6.15-150300.10.103.1 | SUSE-SU-2026:0027-1 |
| SLE Micro 5.4 | python3 +1 | 3.6.15-150300.10.103.1 | SUSE-SU-2026:0027-1 |
| SLE Micro 5.3 | python3 +1 | 3.6.15-150300.10.103.1 | SUSE-SU-2026:0027-1 |
| SLE Micro 5.2 | python3 +1 | 3.6.15-150300.10.103.1 | SUSE-SU-2026:0027-1 |
| SLE HPC 15 SP5 | python311 +2 | 3.11.14-150400.9.72.1 | SUSE-SU-2026:1117-1, SUSE-SU-2026:0299-1 |
| SLE HPC 15 SP4 | python311 +2 | 3.11.14-150400.9.72.1 | SUSE-SU-2026:1117-1, SUSE-SU-2026:0299-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | python310 | 3.10.19-3.1 | openSUSE-SU-2025:15839-1 |
| openSUSE Tumbleweed | python311 | 3.11.14-3.1 | openSUSE-SU-2025:15849-1 |
| openSUSE Tumbleweed | python312 | 3.12.12-4.1 | openSUSE-SU-2025:15850-1 |
| openSUSE Tumbleweed | python313 | 3.13.11-1.1 | openSUSE-SU-2025:15851-1 |
| openSUSE Tumbleweed | python314 | 3.14.2-1.1 | openSUSE-SU-2026:10011-1 |
| openSUSE Tumbleweed | python315 | 3.15.0~a3-1.1 | openSUSE-SU-2025:15840-1 |
| openSUSE Tumbleweed | python39 | 3.9.25-2.1 | openSUSE-SU-2025:15846-1 |
| openSUSE Leap 16.0 | python313 +4 | 3.13.11-160000.1.1 | openSUSE-SU-2026:20081-1 |
| openSUSE Leap 15.6 | python3 +2 | 3.6.15-150300.10.103.1 | SUSE-SU-2026:0027-1 |
| openSUSE Leap 15.6 | python310 +2 | 3.10.19-150400.4.94.1 | SUSE-SU-2026:0130-1 |
| openSUSE Leap 15.6 | python311 +1 | 3.11.14-150600.3.41.2 | SUSE-SU-2026:1349-1, SUSE-SU-2026:0314-1 |
| openSUSE Leap 15.6 | python311-documentation | 3.11.14-150600.3.41.1 | SUSE-SU-2026:1349-1, SUSE-SU-2026:0314-1 |
| openSUSE Leap 15.6 | python312 +2 | 3.12.12-150600.3.40.1 | SUSE-SU-2026:0025-1 |
| openSUSE Leap 15.6 | python39 +2 | 3.9.25-150300.4.90.1 | SUSE-SU-2025:4522-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | python3 +7 | 3.9.25-1.amzn2023.0.2 | ALAS2023-2025-1325 |
| Amazon Linux 2023 | python3.11 +6 | 3.11.14-1.amzn2023.0.3 | ALAS2023-2025-1356 |
| Amazon Linux 2023 | python3.12 +6 | 3.12.12-2.amzn2023.0.3 | ALAS2023-2025-1344 |
| Amazon Linux 2023 | python3.13 +8 | 3.13.11-1.amzn2023.0.1 | ALAS2023-2025-1343 |
| Amazon Linux 2 | python3 +6 | 3.7.16-1.amzn2.0.22 | ALAS2-2025-3103 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | python-py | No fix yet | — |
| Azure Linux 3 | python3 | 3.12.9-7 | — |
| Azure Linux 2 (CBL-Mariner) | python3 | No fix yet | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 10 | python3 +7 | 3.12.13-2.0.1.el10_2 | ELSA-2026-19064 |
| Oracle Linux 9 | python3.12 +6 | 3.12.13-2.0.1.el9_8 | ELSA-2026-19177 |
| Oracle Linux 8 | python3.12 +7 | 3.12.13-2.el8_10 | ELSA-2026-10950 |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | python-3.10 | 3.10.21-r6 | — |
| Wolfi rolling | python-3.11 | 3.11.15-r0 | — |
| Wolfi rolling | python-3.12 | 3.12.12-r4 | — |
Advisories 50
- WID-SEC-2026-2189 Dell PowerProtect Data Domain: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 2, 2026
- ALSA-2026:19177 Important: python3.12 security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:19064 Important: python3.12 security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:10950 Important: python3.12 security update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2026:8822 Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2026:8824 Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2026:19177 Red Hat Security Advisory: python3.12 security update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2026:19064 Red Hat Security Advisory: python3.12 security update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2026:10950 Red Hat Security Advisory: python3.12 security update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2026:7661 Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update Red Hat Security Advisories (RHSA) · Oct 16, 2026
- RHSA-2026:7443 Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update Red Hat Security Advisories (RHSA) · Oct 16, 2026
- SUSE-SU-2026:1117-1 Security update for python311 SUSE / openSUSE Security Updates · Sep 18, 2026
- WID-SEC-2025-2706 Python: Mehrere Schwachstellen ermöglichen Denial of Service BSI CERT-Bund (WID) · Sep 3, 2026
- WID-SEC-2026-2451 Oracle Siebel CRM: Mehrere Schwachstellen BSI CERT-Bund (WID) · Sep 2, 2026
- ELSA-2026-19064 Important: python3.12 security update (Oracle Linux 10) Oracle Linux Security Advisories (ELSA) · Jul 8, 2026
- ELSA-2026-19177 Important: python3.12 security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Jun 12, 2026
- RLSA-2026:19064 Important: python3.12 security update Rocky Linux Security Advisories · May 29, 2026
- RLSA-2026:19177 Important: python3.12 security update Rocky Linux Security Advisories · May 28, 2026
- WID-SEC-2026-0778 Dell Secure Connect Gateway Policy Manager: Mehrere Schwachstellen BSI CERT-Bund (WID) · May 11, 2026
- RLSA-2026:10950 Important: python3.12 security update Rocky Linux Security Advisories · Apr 28, 2026
- ELSA-2026-10950 Important: python3.12 security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Apr 27, 2026
- SUSE-SU-2026:1349-1 Security update for python311 SUSE / openSUSE Security Updates · Apr 16, 2026
- SUSE-SU-2026:20768-1 Security update for python311 SUSE / openSUSE Security Updates · Mar 25, 2026
- SUSE-SU-2026:20796-1 Security update for python311 SUSE / openSUSE Security Updates · Mar 25, 2026
- openSUSE-SU-2026:20081-1 Security update for python313 SUSE / openSUSE Security Updates · Mar 23, 2026
- openSUSE-SU-2026:10011-1 python314-3.14.2-1.1 on GA media SUSE / openSUSE Security Updates · Mar 23, 2026
- openSUSE-SU-2025:15850-1 python312-3.12.12-4.1 on GA media SUSE / openSUSE Security Updates · Mar 23, 2026
- openSUSE-SU-2025:15839-1 python310-3.10.19-3.1 on GA media SUSE / openSUSE Security Updates · Mar 23, 2026
- openSUSE-SU-2025:15840-1 python315-3.15.0~a3-1.1 on GA media SUSE / openSUSE Security Updates · Mar 23, 2026
- openSUSE-SU-2025:15846-1 python39-3.9.25-2.1 on GA media SUSE / openSUSE Security Updates · Mar 23, 2026
- openSUSE-SU-2025:15849-1 python311-3.11.14-3.1 on GA media SUSE / openSUSE Security Updates · Mar 23, 2026
- openSUSE-SU-2025:15851-1 python313-3.13.11-1.1 on GA media SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2026:20374-1 Security update for python311 SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2026:20154-1 Security update for python313 SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2026:20125-1 Security update for python313 SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2026:20047-1 Security update for python311 SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2026:0314-1 Security update for python311 SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2026:0130-1 Security update for python310 SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2026:0027-1 Security update for python3 SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2026:0025-1 Security update for python312 SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2026:0024-1 Security update for python313 SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:4522-1 Security update for python39 SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:4539-1 Security update for python36 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:4538-1 Security update for python3 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2026:0299-1 Security update for python311 SUSE / openSUSE Security Updates · Feb 4, 2026
- DLA-4445-1 python3.9 - security update Debian Security (DSA / DLA) · Jan 20, 2026
- ALAS2023-2025-1325 Moderate: python3.9 security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Jan 7, 2026
- ALAS2023-2025-1343 Moderate: python3.13 security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Jan 7, 2026
- ALAS2023-2025-1344 Moderate: python3.12 security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Jan 7, 2026
- ALAS2023-2025-1356 Moderate: python3.11 security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Jan 7, 2026
References
- https://github.com/python/cpython/pull/119343 patch
- https://github.com/python/cpython/issues/119342 issue-tracking
- https://github.com/python/cpython/commit/694922cf40aa3a28f898b5f5ee08b71b4922df70 patch
- https://github.com/python/cpython/commit/71fa8eb8233b37f16c88b6e3e583b461b205d1ba patch
- https://github.com/python/cpython/commit/b64441e4852383645af5b435411a6f849dd1b4cb patch
- https://mail.python.org/archives/list/security-announce@python.org/thread/2X5IBCJXRQAZ5PSERLHMSJFBHFR3QM2C/ vendor-advisory
- https://github.com/python/cpython/commit/5a8b19677d818fb41ee55f310233772e15aa1a2b patch
- https://github.com/python/cpython/commit/568342cfc8f002d9a15f30238f26b9d2e0e79036 patch
- https://github.com/python/cpython/commit/cefee7d118a26ef6cd43db59bb9d98ca9a331111 patch