CVE-2025-12781
MediumAdvisory
Published 21 Jan 2026In the index since 5 Sept 2026
- Severity
- Medium
- worst across findings
- CVSS
- 6.3
- base score, highest
- EPSS
- 0.005
- 43rd percentile
- CISA KEV
- Not listed
- no confirmed exploitation
- Charts affected
- 651
- of 17,787 indexed, latest versions
- Container images
- 645
- deployed by those charts
- Fix available
- 3 of 15
- affected packages
base64.b64decode() always accepts "+/" characters, despite setting altchars
Carried by container images the latest versions of 651 of 17,787 indexed charts deploy, on 645 images.
| Affected package | Affected versions | Fixed in | Images |
|---|---|---|---|
| python-3.12apk | 3.12.0-r1, 3.12.9-r1, 3.12.14-r2, 3.12.14-r6 | no fix listed | 8 |
| python-3.14apk | 3.14.2-r2, 3.14.4-r2, 3.14.6-r0 | 3.14.6-r1 | 6 |
| pythonbitnami | 3.11.11-0, 3.12.8-0, 3.13.5-1 | 3.15.0 | 3 |
| python-3.13apk | 3.13.7-r0, 3.13.10-r0, 3.13.12-r2 | 3.13.14-r0 | 3 |
| python-3.11apk | 3.11.16-r5 | no fix listed | 1 |
| python3.11deb | 3.11.0~rc1-1~22.04, 3.11.0~rc1-1~22.04.1, 3.11.2-6, 3.11.2-6+deb12u2+6 more | no fix listed | 180 |
| python3.8deb | 3.8.5-1~20.04, 3.8.5-1~20.04.2, 3.8.5-1~20.04.3, 3.8.10-0ubuntu1~20.04+11 more | no fix listed | 100 |
| python3.12deb | 3.12.3-1, 3.12.3-1ubuntu0.2, 3.12.3-1ubuntu0.3, 3.12.3-1ubuntu0.4+11 more | no fix listed | 87 |
| python3.10deb | 3.10.4-3, 3.10.4-3ubuntu0.1, 3.10.6-1~22.04, 3.10.6-1~22.04.1+16 more | no fix listed | 80 |
| python3.13deb | 3.13.5-2, 3.13.5-2+deb13u2, 3.13.5-2+deb13u4, 3.13.7-1ubuntu0.1 | no fix listed | 74 |
| python2.7deb | 2.7.6-8, 2.7.6-8ubuntu0.4, 2.7.12-1ubuntu0~16.04.2, 2.7.12-1ubuntu0~16.04.3+12 more | no fix listed | 54 |
| python3.6deb | 3.6.6-1~18.04, 3.6.7-1~18.04, 3.6.9-1~18.04, 3.6.9-1~18.04ubuntu1+7 more | no fix listed | 44 |
| python3.5deb | 3.5.2-2ubuntu0~16.04.1, 3.5.2-2ubuntu0~16.04.4, 3.5.2-2ubuntu0~16.04.5, 3.5.2-2ubuntu0~16.04.9 | no fix listed | 25 |
| python3.14deb | 3.14.4-1, 3.14.4-1ubuntu0.1, 3.14.4-1ubuntu0.2 | no fix listed | 9 |
| python3.4deb | 3.4.0-2ubuntu1, 3.4.3-1ubuntu1~14.04.5, 3.4.3-1ubuntu1~14.04.6, 3.4.3-1ubuntu1~14.04.7 | no fix listed | 7 |
- OSV records
- BIT-python-2025-12781CGA-3mjq-5c23-prmpCGA-4mf7-96v4-52mjCGA-8w6w-j788-x97qCGA-p288-9mv5-m48fDEBIAN-CVE-2025-12781UBUNTU-CVE-2025-12781
- Also known as
- BIT-libpython-2025-12781, BIT-python-min-2025-12781, CGA-m2h9-8f76-h5pw, CGA-qm9w-v5cx-mm74, CGA-x4f5-663c-vj94, CGA-xp35-jg4m-v7xg, PSF-2026-7
Charts affected
651 by stars
Container images carrying it
645 by charts deploying them
A fixed version is listed for 3 of the 15 affected packages.
| Container image | Digest | Package | Fixed in | Used by |
|---|---|---|---|---|
| ghcr.io/ | 8e3cb38953a3 | python3.12 | no fix listed | 1 |
| ghcr.io/ | 26953ec68d5d | python3.8 | no fix listed | 1 |
| ghcr.io/ | d7c43c3135c6 | python3.8 | no fix listed | 1 |
| ghcr.io/ | 0bc598b2ac9a | python3.12 | no fix listed | 1 |
| ghcr.io/ | 6daa2dc7556b | python3.13 | no fix listed | 1 |
| ghcr.io/ | e8d3f1512f06 | python-3.14 | 3.14.6-r1 | 1 |
| ghcr.io/ | af663f4ba6e4 | python-3.12 | no fix listed | 1 |
| ghcr.io/ | 59e362c2b669 | python-3.12 | no fix listed | 1 |
| ghcr.io/ | 1beb0658f9e3 | python-3.12 | no fix listed | 1 |
| ghcr.io/ | f02bb7b28e8a | python-3.12 | no fix listed | 1 |
| ghcr.io/ | aa467443e407 | python3.10 | no fix listed | 1 |
| ghcr.io/ | 70548dbe0c6a | python3.10 | no fix listed | 1 |
| ghcr.io/ | b354978c440d | python3.10 | no fix listed | 1 |
| ghcr.io/ | 6e04659a3baa | python3.11 | no fix listed | 1 |
| ghcr.io/ | dbaa8527bf4c | python3.11 | no fix listed | 1 |
| ghcr.io/ | 1b53b0b3488e | python3.13 | no fix listed | 1 |
| ghcr.io/ | d19d886d5090 | python3.11 | no fix listed | 1 |
| ghcr.io/ | 5a6fe78d4d15 | python3.11 | no fix listed | 1 |
| ghcr.io/ | f10fd24b2290 | python3.12 | no fix listed | 1 |
| ghcr.io/ | fbba58ddb1a6 | python3.11 | no fix listed | 1 |
| ghcr.io/ | 7dc0ee57b628 | python3.11 | no fix listed | 1 |
| mcr.microsoft.com/ | 13221ac5f673 | python2.7 python3.6 | no fix listed no fix listed | 1 |
| mcr.microsoft.com/ | 49a57dc220b1 | python3.8 | no fix listed | 1 |
| mcr.microsoft.com/ | 4bab24f36c1e | python3.12 | no fix listed | 1 |
| mcr.microsoft.com/ | ba4c8329f48f | python3.10 | no fix listed | 1 |
| mcr.microsoft.com/ | cee0f4db03b5 | python3.12 | no fix listed | 1 |
| mcr.microsoft.com/ | fbf79e0fea59 | python2.7 python3.6 | no fix listed no fix listed | 1 |
| public.ecr.aws/ | b1493760c716 | python3.11 | no fix listed | 1 |
| public.ecr.aws/ | 5cd62142d6ed | python3.11 | no fix listed | 1 |
| public.ecr.aws/ | 046ef5c9ed50 | python3.11 | no fix listed | 1 |
| public.ecr.aws/ | 573779e57fae | python3.8 | no fix listed | 1 |
| public.ecr.aws/ | f74851ce31f5 | python3.11 | no fix listed | 1 |
| quay.io/ | 9c8a510dc25e | python3.13 | no fix listed | 1 |
| quay.io/ | a2d3a4c67b0f | python3.6 | no fix listed | 1 |
| quay.io/ | 3408107e5cc4 | python3.12 | no fix listed | 1 |
| quay.io/ | 97b7f49eec76 | python-3.14 | 3.14.6-r1 | 1 |
| quay.io/ | 8a4150e94a45 | python-3.14 | 3.14.6-r1 | 1 |
| quay.io/ | f5c4c8adfc82 | python-3.14 | 3.14.6-r1 | 1 |
| quay.io/ | b5054bd4e97a | python-3.14 | 3.14.6-r1 | 1 |
| quay.io/ | e0d9b93dbf2b | python3.11 | no fix listed | 1 |
| registry.gitlab.com/ | 166a06f73d8c | python3.12 | no fix listed | 1 |
| registry.gitlab.com/ | 0e3cd8c7776d | python3.11 | no fix listed | 1 |
| registry.gitlab.com/ | f6385712935f | python3.8 | no fix listed | 1 |
| registry.k8s.io/ | 1eb5a85180a4 | python3.11 | no fix listed | 1 |
| registry.k8s.io/ | ce5b5ccd5eb0 | python3.11 | no fix listed | 1 |