CVE-2026-80180

MEDIUMPre-NVD 6.16.1—
EchelonGraph scoreHIGH confidence

Score 6.1 from GitHub Security Advisory published 2026-09-04. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 6.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
6.1EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.1Exploit: None knownExposed: 0

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

Stored XSS via markdown HTML processing in Apache Allura.

This issue affects Apache Allura: from through 1.20.0.

Users are recommended to upgrade to version 1.21.0, which fixes the issue.

CVSS v3
6.1
EG Score
6.1(high)
EG Risk
28(Track)
EG Risk 28/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity61% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
16%
KEV
Not listed

Published

September 4, 2026

Last Modified

September 8, 2026

Advisory Details (1)

Auto-updated Sep 4, 2026
No patch confirmed yet.
generic
https://lists.apache.org/thread/rjo2hjhp76qhl9f3br8jq909mohvzkpq

Vendor Advisories for CVE-2026-80180(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 20× in last 7d / 63× 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. 2026-09-24 19:34 UTCEG score recompute
  2. 2026-09-24 19:34 UTCGHSA enrichment
  3. 2026-09-24 14:04 UTCEPSS rescore
  4. 2026-09-23 20:41 UTCEG score recompute
  5. 2026-09-23 20:41 UTCGHSA enrichment
  6. 2026-09-23 17:54 UTCEPSS rescore
  7. 2026-09-22 21:48 UTCEG score recompute
  8. 2026-09-22 21:48 UTCGHSA enrichment
  9. 2026-09-22 16:01 UTCEPSS rescore
  10. 2026-09-21 22:55 UTCEG score recompute
  11. 2026-09-21 22:55 UTCGHSA enrichment
  12. 2026-09-21 21:09 UTCEPSS rescore
  13. 2026-09-21 00:02 UTCEG score recompute
  14. 2026-09-21 00:02 UTCGHSA enrichment
  15. 2026-09-20 20:16 UTCEPSS rescore
  16. 2026-09-20 01:09 UTCEG score recompute
  17. 2026-09-20 01:09 UTCGHSA enrichment
  18. 2026-09-19 02:15 UTCEG score recompute
  19. 2026-09-19 02:15 UTCGHSA enrichment
  20. 2026-09-18 19:28 UTCEPSS rescore
  21. 2026-09-18 03:15 UTCEG score recompute
  22. 2026-09-18 03:15 UTCGHSA enrichment
  23. 2026-09-17 04:22 UTCEG score recompute
  24. 2026-09-17 04:22 UTCGHSA enrichment
  25. 2026-09-16 14:08 UTCEPSS rescore
Show 38 more
  1. 2026-09-16 05:27 UTCEG score recompute
  2. 2026-09-16 05:27 UTCGHSA enrichment
  3. 2026-09-16 05:15 UTCEPSS rescore
  4. 2026-09-15 06:35 UTCEG score recompute
  5. 2026-09-15 06:35 UTCGHSA enrichment
  6. 2026-09-15 03:12 UTCEPSS rescore
  7. 2026-09-15 03:12 UTCEPSS rescore
  8. 2026-09-14 07:42 UTCEG score recompute
  9. 2026-09-14 07:42 UTCGHSA enrichment
  10. 2026-09-13 08:49 UTCEG score recompute
  11. 2026-09-13 08:49 UTCGHSA enrichment
  12. 2026-09-12 09:56 UTCEG score recompute
  13. 2026-09-12 09:56 UTCGHSA enrichment
  14. 2026-09-11 14:53 UTCEPSS rescore
  15. 2026-09-11 14:53 UTCEPSS rescore
  16. 2026-09-11 11:03 UTCEG score recompute
  17. 2026-09-11 11:03 UTCGHSA enrichment
  18. 2026-09-10 12:10 UTCEG score recompute
  19. 2026-09-10 12:10 UTCGHSA enrichment
  20. 2026-09-09 13:17 UTCEG score recompute
  21. 2026-09-09 13:17 UTCGHSA enrichment
  22. 2026-09-08 22:01 UTCEPSS rescore
  23. 2026-09-08 14:19 UTCGHSA enrichment
  24. 2026-09-07 17:03 UTCEG score recompute
  25. 2026-09-07 17:03 UTCGHSA enrichment
  26. 2026-09-06 18:10 UTCEG score recompute
  27. 2026-09-06 18:10 UTCGHSA enrichment
  28. 2026-09-06 13:48 UTCEPSS rescore
  29. 2026-09-05 19:17 UTCEG score recompute
  30. 2026-09-05 19:17 UTCGHSA enrichment
  31. 2026-09-05 15:31 UTCEPSS rescore
  32. 2026-09-04 20:24 UTCGHSA enrichment
  33. 2026-09-04 19:49 UTCEG score recompute▲ 6.10
  34. 2026-09-04 19:49 UTCGHSA enrichment
  35. 2026-09-04 19:49 UTCMITRE cvelistV5CVSS v3 → 6.1 · severity → MEDIUM
  36. 2026-09-04 07:28 UTCNVD update
  37. 2026-09-04 06:55 UTCEG score recompute
  38. 2026-09-04 06:53 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-80180?
CVE-2026-80180 is a medium vulnerability published on September 4, 2026. Stored XSS via markdown HTML processing in Apache Allura. This issue affects Apache Allura: from through 1.20.0. Users are recommended to upgrade to version 1.21.0, which fixes the issue.
When was CVE-2026-80180 disclosed?
CVE-2026-80180 was first published in the National Vulnerability Database on September 4, 2026, with the most recent update on September 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-80180 actively exploited?
CVE-2026-80180 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 83.9% of all scored CVEs.
What is the CVSS score of CVE-2026-80180?
CVE-2026-80180 has a CVSS v3.1 base score of 6.1 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-80180?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-80180, 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

Explore the affected products and dependency analysis for CVE-2026-80180

Explore →

Is Your Infrastructure Affected by CVE-2026-80180?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Book a Demo →Browse All CVEs