CVE-2026-113357
MEDIUM 5.1@e2e-dev/github before 0.4.1 contains an improper authorization vulnerability that allows pull request commenters to hijack CI test reports by posting comments with the predictable marker. Because findComment and upsertComment in post.ts never check the comment author, attackers can receive results in their own comment and edit failures to passes, or suppress genuine reports entirely.
No known exploitation, public exploit, or elevated probability at this time. Track for changes.
Exploitation likelihood
0.2%chance of exploitation in 30 days · 12th percentile
Impact if exploited
5.1CVSS 4.0 · MEDIUM
- ConfidentialityNone
- IntegrityLow
- AvailabilityNone
What an attacker needs
- ✓Access: Reachable over the network — no local access needed
- ⚠Privileges: Requires a low-privilege account
- ⚠User interaction: Succeeds with passive user activity
- ✓Complexity: No special conditions — reliably repeatable
- ✓Requirements: No special attack requirements
✓ lowers the bar for an attacker · ⚠ raises it
Proof of concept
No public PoC is currently catalogued.
Search for new PoCs
Search GitHub now — results may be empty or unverified.
Tracked sources are checked daily for recent CVEs, including PoCs published after the original disclosure. A later release appears after a tracked source lists it and a refresh succeeds.
Data snapshot:
Weakness (CWE)
- CWE-863: Incorrect Authorization
CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
References and research data (JSON)
All CVSS metrics
- MEDIUM 5.1 v4.0 · CNA Primary
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N - LOW 3.5 v3.1 · CNA Primary
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N - MEDIUM 5.1 v4.0 · NVD Secondary
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - LOW 3.5 v3.1 · NVD Secondary
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
References
Patches & mitigations
- https://github.com/tester-army/e2e/pull/1161 CVE record · VulnCheck · Updated 2026-10-20T10:41:41.607Z
NVD · CVE-2026-113357 · Updated 2026-10-20T20:11:29.833 - https://github.com/tester-army/e2e/commit/ce4dac373784f87fade6808119ba537a0b4965fc CVE record · VulnCheck · Updated 2026-10-20T10:41:41.607Z
NVD · CVE-2026-113357 · Updated 2026-10-20T20:11:29.833 - https://github.com/tester-army/e2e/releases/tag/%40e2e-dev%2Fgithub%400.4.1 CVE record · VulnCheck · Updated 2026-10-20T10:41:41.607Z
NVD · CVE-2026-113357 · Updated 2026-10-20T20:11:29.833
Advisories
- https://www.vulncheck.com/advisories/e2e-dev-github-before-0.4.1-ci-report-hijacking-via-predictable-comment-marker CVE record · VulnCheck · Updated 2026-10-20T10:41:41.607Z
NVD · CVE-2026-113357 · Updated 2026-10-20T20:11:29.833 - https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-104928 EUVD · EUVD-2026-104928
Technical & other
- https://github.com/tester-army/e2e/blob/37e946907bc26743d68861b97127271143441eb3/packages/github/src/post.ts CVE record · VulnCheck · Updated 2026-10-20T10:41:41.607Z
NVD · CVE-2026-113357 · Updated 2026-10-20T20:11:29.833