What is CVE-2023-46321?

CVE-2023-46321 is a critical-severity vulnerability in Iterm2, classified under Improper Output Neutralization for Logs. CVSS score: 9.8/10. Published 2023-10-23.

How severe is CVE-2023-46321?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Iterm2

CVE-2023-46321

iTermSessionLauncher.m in iTerm2 before 3.5.0beta12 does not sanitize paths in x-man-page URLs. They may have shell metacharacters for a /usr/bin/man command line.

Published 2023-10-23 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.007 (49.4th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 49.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Iterm2 — versions 3.5.0

Weakness classification (CWE)

CWE-117 — Improper Output Neutralization for Logs

References

iterm2.com/downloads.html (Vendor Advisory)
gitlab.com/gnachman/iterm2/-/commit/de3d351e1bd3bc1c1a4f85fe976c592e497dd071 (Third Party Advisory)

Frequently asked questions

What is CVE-2023-46321?: CVE-2023-46321 is a critical-severity vulnerability in Iterm2, classified under Improper Output Neutralization for Logs. CVSS score: 9.8/10. Published 2023-10-23.
How severe is CVE-2023-46321?: Critical severity. CVSS v3 base score is 9.8 out of 10.