Vulnerability · Published Aug 6, 2026 · Assigned by GitHub_M

CVE-2026-64654GitHub CLI: Terminal escape sequence injection in multiple `gh` commands

Medium 5.3

In plain English

A medium-severity security flaw in cli from cli. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 56% of all known vulnerabilities).

Severity (CVSS 4.0)5.3Medium

Exploit odds (30 days)0.8%top 44.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

GitHub CLI (gh) is GitHub's official command line tool. Prior to version 2.97.0, multiple GitHub CLI commands printed externally controlled gist, API, pull request, release, codespace, skill, or agent-task content without neutralizing terminal escape sequences. An attacker who can influence that content can embed escape sequences that are interpreted by the terminal of a user who runs an affected command, with impact ranging from cosmetic manipulation of the title or on-screen content to, on some terminal emulators, command execution. This extends the same class of issue as CVE-2026-45803—which addressed only gh run view --log—to the other affected command paths. This issue is fixed in version 2.97.0.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Debian:12	gh	no fix listed	DEBIAN-CVE-2026-64654
Debian:13	gh	no fix listed	DEBIAN-CVE-2026-64654
Ubuntu:22.04:LTS	gh	no fix listed	UBUNTU-CVE-2026-64654
Ubuntu:26.10	gh	no fix listed	UBUNTU-CVE-2026-64654

Affected products (as reported)

Vendor	Product	Versions
cli	cli	< 2.97.0

Weakness: CWE-150 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

References

https://github.com/cli/cli/security/advisories/GHSA-3m3g-3wcr-px46 x_refsource_CONFIRM
https://github.com/cli/cli/commit/2a1409fe88d416cc85fc96fb5bc473f83ed5a054 x_refsource_MISC
https://github.com/cli/cli/releases/tag/v2.97.0 x_refsource_MISC