CVE-2026-13533

MEDIUMPre-NVD 5.35.3—
EchelonGraph scoreHIGH confidence

Score 5.3 from GitHub Security Advisory published 2026-06-29. a secondary CVSS source baseline 5.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
5.3
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 5.3Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

A security vulnerability has been detected in agentejo Cockpit CMS up to 0.12.2. Affected by this issue is the function Spyc::YAMLLoad of the file /config/config.yaml of the component htaccess Handler. Such manipulation leads to files or directories accessible. It is possible to launch the attack remotely. The exploit has been disclosed publicly and may be used. Configuration settings should be changed. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS v3
5.3
EG Score
5.3(high)
EPSS
20.4%
KEV
Not listed

Published

June 29, 2026

Last Modified

June 29, 2026

Advisory Details (1)

Auto-updated Jun 29, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

Cockpit CMS v1 Unauthenticated config.yaml Disclosure — CWE-552 (5.4k stars, unmaintained, 0day) · GitHub

https://gist.github.com/nov-1337/3eb0a06c602ced9c3b11b675b53947da

Vendor Advisories for CVE-2026-13533(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 21× in last 7d / 29× 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.

  1. 2026-07-06 16:27 UTCEPSS rescore
  2. 2026-07-06 15:28 UTCEG score recompute
  3. 2026-07-06 15:28 UTCGHSA enrichment
  4. 2026-07-06 02:23 UTCEPSS rescore
  5. 2026-07-05 17:12 UTCEG score recompute
  6. 2026-07-05 17:12 UTCGHSA enrichment
  7. 2026-07-05 02:30 UTCEPSS rescore
  8. 2026-07-05 02:30 UTCEPSS rescore
  9. 2026-07-04 18:57 UTCEG score recompute
  10. 2026-07-04 18:56 UTCGHSA enrichment
  11. 2026-07-03 20:40 UTCEG score recompute
  12. 2026-07-03 20:40 UTCGHSA enrichment
  13. 2026-07-02 22:24 UTCEG score recompute
  14. 2026-07-02 22:24 UTCGHSA enrichment
  15. 2026-07-02 00:09 UTCEG score recompute
  16. 2026-07-02 00:09 UTCGHSA enrichment
  17. 2026-07-01 15:06 UTCEPSS rescore
  18. 2026-07-01 15:06 UTCEPSS rescore
  19. 2026-07-01 01:54 UTCEG score recompute
  20. 2026-07-01 01:54 UTCGHSA enrichment
  21. 2026-06-30 23:22 UTCEPSS rescore
  22. 2026-06-30 03:38 UTCEG score recompute
  23. 2026-06-30 03:38 UTCGHSA enrichment
  24. 2026-06-29 17:26 UTCNVD updateCVSS v4 → 5.5
  25. 2026-06-29 16:13 UTCMITRE cvelistV5CVSS v4 → 6.9
Show 4 more
  1. 2026-06-29 14:06 UTCEPSS rescore
  2. 2026-06-29 08:04 UTCNVD updateCVSS v4 → 5.5
  3. 2026-06-29 05:19 UTCEG score recompute
  4. 2026-06-29 05:17 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-13533?
CVE-2026-13533 is a medium vulnerability published on June 29, 2026. A security vulnerability has been detected in agentejo Cockpit CMS up to 0.12.2. Affected by this issue is the function Spyc::YAMLLoad of the file /config/config.yaml of the component htaccess Handler. Such manipulation leads to files or directories accessible. It is possible to launch the attack…
When was CVE-2026-13533 disclosed?
CVE-2026-13533 was first published in the National Vulnerability Database on June 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-13533 actively exploited?
CVE-2026-13533 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 20.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-13533?
CVE-2026-13533 has a CVSS v3 base score of 5.3 (NVD).
How do I remediate CVE-2026-13533?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-13533, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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