5.7

CVE-2025-11468: Folding email comments of unfoldable characters doesn't preserve parenthesis

Deferred
AliasesUBUNTU-CVE-2025-11468DEBIAN-CVE-2025-11468CGA-4jvq-pjrw-5q5h
Published 20-01-2026Last modified 03-03-2026

Vulnerability summary

CVE-2025-11468 is a medium (CVSS 5.7) vulnerability in python software foundation cpython. EPSS estimates a 0.62% chance of exploitation in the next 30 days, higher than 49.5% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 5.7, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
5.7/10
010
Medium · v4.0 (CVE.org)
EPSS score
0.62%
0%100%
Low · -0.01 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 29 · Related 25
DLA-4455-1MGASA-2026-0455OPENSUSE-SU-2026:10126-1OPENSUSE-SU-2026:10200-1OPENSUSE-SU-2026:10221-1OPENSUSE-SU-2026:10222-1

Timeline

  1. 20-01-2026
    PublishedVulnerability first disclosed.
  2. 03-03-2026
    Last modifiedVulnerability information updated.

Description

When folding a long comment in an email header containing exclusively unfoldable characters, the parenthesis would not be preserved. This could be used for injecting headers into email messages where addresses are user-controlled and not sanitized.

CVSS metrics

6 scores · 6 sources · 1 version

EPSS trend

Probability

0.62%

Chance of exploitation in the next 30 days

Percentile

50%

Versus all other CVEs

30-day change

Decrease -0.01 pp

From 0.63% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, administrative account, user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu9 products
  • python3.10< 3.10.12-1~22.04.14
  • python3.11< 3.11.0~rc1-1~22.04.1~esm8
  • python3.12< 3.12.3-1ubuntu0.11
  • python3.13< 3.13.7-1ubuntu0.3
  • python3.14< 3.14.0-1ubuntu0.2
Chainguard6 products
  • python-3.10< 3.10.19-r4
  • python-3.11< 3.11.14-r5
  • python-3.12< 3.12.12-r5
  • python-3.13< 3.13.12-r1
  • python-3.14< 3.14.3-r1
Wolfi5 products
  • python-3.10< 3.10.19-r4
  • python-3.11< 3.11.14-r5
  • python-3.12< 3.12.12-r5
  • python-3.13< 3.13.12-r1
  • python-3.14< 3.14.3-r1
Debian4 products
  • pypy3All versions (No fix recorded) | < 7.3.21+dfsg-1
  • python3.11< 3.11.2-6+deb12u7
  • python3.13< 3.13.12-1 | < 3.13.5-2+deb13u1
  • python3.14< 3.14.3-1
Opensuse1 product
  • python314&distro=openSUSE Tumbleweed< 3.14.2-2.1
Python software foundation1 product
  • cpython< 3.10.20 | ≥ 3.11.0, < 3.11.15 | ≥ 3.12.0, < 3.12.13 | ≥ 3.13.0, < 3.13.12 | ≥ 3.14.0, < 3.14.3 | ≥ 3.15.0a1, < 3.15.0a6

6 vendors · 26 products

References

17 links
Show all 17 references