DEBIAN-CVE-2026-3446

Advisory lineage Upstream: 1 Downstream: 0
Upstream
CVE-2026-3446
Published: 10 Apr 2026, 19:16
Last modified:05 Jul 2026, 21:00

Vulnerability Summary

Overall Risk (default)
low
24/100
CVSS Score
6 MEDIUM
4.0 (osv_debian)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

10 Apr 2026, 19:16
Published
Vulnerability first disclosed
05 Jul 2026, 21:00
Last Modified
Vulnerability information updated

Description

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.

CVSS Metrics

  • v4.0•MEDIUM•Score: 6CVSS: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 Systems

  • debian•pypy3

    all | all | all | all

  • debian•python2.7

    all

  • debian•python3.11

    all

  • debian•python3.13

    all | all | < 3.13.5-2+deb13u2 | < 3.13.14-1

  • debian•python3.14

    all | < 3.14.4-1

  • debian•python3.9

    all

References (1)