🛡️ CVE-2024-6923 on Debian — pypy3

⚪ Unknown ✅ No Known Exploit OSV

N/A

CVSS Score

0 Low4 Medium7 High9 Critical10

Description

There is a MEDIUM severity vulnerability affecting CPython. The email module didn’t properly quote newlines for email headers when serializing an email message allowing for header injection when an email is serialized.

Distribution advisory

This page covers CVE-2024-6923 as tracked by Debian, for the package pypy3. The fix is available in version 7.3.18+dfsg-1; earlier versions remain affected.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs low-level privileges on the target. A user must be tricked into taking some action. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality low, integrity low, availability low.

Affected software

DEBIAN-CVE-2024-6923 is recorded against 5 packages.

pypy3 (fixed in 7.3.18+dfsg-1)
python2.7
python3.11 (fixed in 3.11.2-6+deb12u5)
python3.13 (fixed in 3.13.0~rc2-1)
python3.9 (fixed in 3.9.2-1+deb11u2)

Timeline and source

Published on 1 August 2024 and last revised on 4 August 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

security-tracker.debian.org (Advisory)

CVE-2024-6923 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Alpine BellSoft Base record Ubuntu

Details

Severity Unknown

CVSS Score N/A

CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L

CWE N/A

Public Exploit ✅ No

Source OSV

Published 2024-08-01

Updated 2026-08-12

Modified 2026-08-04

Fix URL N/A

Affected Packages

Software	From version	Fixed in
pypy3	—	7.3.18+dfsg-1
python2.7	—	—
python3.11	—	3.11.2-6+deb12u5
python3.13	—	3.13.0~rc2-1
python3.9	—	3.9.2-1+deb11u2

References

ADVISORY https://security-tracker.debian.org/tracker/CVE-2024-6923

🔗 NVD 🔗 Mitre

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