Bug 2477927 (CVE-2026-45803) - CVE-2026-45803 github.com/cli/cli: GitHub CLI: Arbitrary command execution via terminal escape sequence injection in workflow logs
Summary: CVE-2026-45803 github.com/cli/cli: GitHub CLI: Arbitrary command execution vi...
Keywords:
Status: NEW
Alias: CVE-2026-45803
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2483739 2483740
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-05-15 16:01 UTC by OSIDB Bzimport
Modified: 2026-06-09 08:55 UTC (History)
19 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-05-15 16:01:58 UTC
`gh` is GitHub’s official command line tool. From 1.6.0 to before 2.92.0, a security vulnerability has been identified in GitHub CLI that could allow terminal escape sequence injection when users view GitHub Actions workflow logs using gh run view --log or gh run view --log-failed. The vulnerability stems from the way GitHub CLI handles raw Actions log output. The gh run view --log and gh run view --log-failed commands stream workflow log lines to stdout or the configured pager without sanitizing terminal control sequences. An attacker who can influence GitHub Actions log content, for example via a PR triggered workflow, can embed escape sequences that are replayed in the user's terminal when they inspect the run. Depending on the victim's terminal emulator, injected sequences could change the window title, manipulate on screen content, or in some terminal emulators (such as screen) potentially execute arbitrary commands. This vulnerability is fixed in 2.92.0.


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