GHSA-8r9f-h969-mm4m

GHSA-8r9f-h969-mm4m PUBLISHED CVSS 6 MEDIUM

Record from GitHub Advisory Database · Published April 10, 2026

When calling base64.b64decode() or related functions the decoding process would stop after encountering the first padded quad regardless of whether there was more information to be processed. This can lead to data being accepted which may be processed differently by other implementations. Use "validate=True" to enable stricter processing of base64 data.

Fixed versions

Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.

Package	Ecosystem	Fixed in
python-3.12	Wolfi	3.12.16-r2

Risk scores

CVSS 4.0

CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected products

Vendor	Product	Versions
wolfi	python-3.12	0

Timeline

Apr 10, 2026 CVE Published
May 1, 2026 Security Advisory

Query this with the API

The same record, from the CLI:

vulnetix vdb vuln GHSA-8r9f-h969-mm4m
vulnetix vdb fixes GHSA-8r9f-h969-mm4m

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curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
  "https://api.vdb.vulnetix.com/v2/vuln/GHSA-8r9f-h969-mm4m/fixes/registry"

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References

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