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.
CVE-2026-45803
This low-severity CVE scores 3.5 under NVD CVSS v3. EPSS exploit probability: 0.2%, top 90% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- Lower severity and no public exploit yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 3.5
- EG Score
- 3.5(medium)
- EPSS
- 10.7%
- KEV
- Not listed
Published
May 15, 2026
Last Modified
May 21, 2026
References (2)
- security-advisories@githubhttps://github.com/cli/cli/security/advisories/GHSA-crc3-h8v6-qh57
- 134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/cli/cli/security/advisories/GHSA-crc3-h8v6-qh57
Vendor Advisories for CVE-2026-45803(2)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Affected Packages
(2 across 1 ecosystem)
Go(2)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| github.com/cli/cli | — | — | — |
| github.com/cli/cli/v2 | — | 2.92.0 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 7× in last 7d / 40× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-11 08:27 UTCEPSS rescore
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- 2026-06-29 21:30 UTCEG score recompute
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- 2026-06-25 18:49 UTCEG score recompute
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- 2026-06-21 14:56 UTCEPSS rescore
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- 2026-06-17 13:28 UTCEG score recompute
- 2026-06-16 17:52 UTCEPSS rescore
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- 2026-06-14 05:27 UTCEG score recompute
- 2026-06-13 23:00 UTCEPSS rescore
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- 2026-06-10 22:46 UTCEG score recompute
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- 2026-06-08 14:17 UTCEPSS rescore
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- 2026-06-07 17:02 UTCEG score recompute
- 2026-06-07 15:25 UTCEPSS rescore
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- 2026-06-06 13:47 UTCEPSS rescore
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- 2026-06-04 11:18 UTCEG score recompute
- 2026-06-02 20:13 UTCEPSS rescore
- 2026-06-01 13:52 UTCEPSS rescore
- 2026-06-01 13:52 UTCEPSS rescore
- 2026-06-01 05:34 UTCEG score recompute
- 2026-05-31 22:30 UTCEPSS rescore
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- 2026-05-26 13:44 UTCEPSS rescore
- 2026-05-26 07:18 UTCEPSS rescore
- 2026-05-23 00:07 UTCEG score recompute
- 2026-05-21 22:43 UTCEPSS rescore
- 2026-05-20 22:38 UTCEPSS rescore
- 2026-05-20 12:02 UTCEG score recompute
- 2026-05-20 11:22 UTCEPSS rescore
Frequently asked(5)
What is CVE-2026-45803?
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Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-45803
Is Your Infrastructure Affected by CVE-2026-45803?
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