Terminal Escape Sequence Injection in GitHub CLI
CVE-2026-45803

3.5LOW

Key Information:

Vendor

Cli

Status
Cli
Vendor
CVE Published:
15 May 2026

What is CVE-2026-45803?

A security issue has been identified in GitHub CLI that could allow terminal escape sequence injection. When users view GitHub Actions workflow logs using specific commands, the tool does not properly sanitize terminal control sequences, enabling attackers to embed escape sequences in the log output. If this content is modified by a malicious user, it could manipulate terminal behavior, such as changing window titles or potentially executing arbitrary commands in certain terminal environments. This vulnerability has been addressed in the latest version of GitHub CLI.

Affected Version(s)

cli >= 1.6.0, < 2.92.0

References

https://github.com/cli/cli/security/advisories/GHSA-crc3-...
x_refsource_CONFIRM

CVSS V3.1

Score:
3.5
Severity:
LOW
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.