CVE-2026-82376

HIGHPre-NVD 7.77.7—
EchelonGraph scoreHIGH confidence

Score 7.7 from GitHub Security Advisory (severity: HIGH) published 2026-09-28. A secondary CVSS source baseline 7.7; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
7.7EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 7.7Exploit: None knownExposed services: Not assessed

An upstream fix is merged but not yet released — mitigate (WAF / firewall / segmentation) until the release ships, then apply it.

Improper Restriction of XML External Entity Reference in Apache Roller 6.1.5 allows a user with entry-editing rights on a weblog to cause the server to parse an attacker-influenced trackback response with an XML parser that does not disable external entity resolution, leading to disclosure of files readable by the Roller process. The Trackback control is hidden in the standard UI, but its action remains directly reachable, and no non-default server configuration is required. Users are recommended to upgrade to Apache Roller 6.1.6 or later, which removes the outbound trackback response parser.

CVSS v3
7.7
EG Score
7.7HIGHhigh confidence
EG Risk
35
EG Risk 35/100CISA SSVC

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
Severity77% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: An upstream fix is merged but not yet in a tagged release. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines until it ships, then apply the release.
EPSS PROB
0.3%
EPSS %ILE
20th
KEV
Not listed

CISA SSVCTrack at every mission impact level.

An upstream fix is merged but not yet in a tagged release. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines until it ships, then apply the release.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

September 28, 2026

Last Modified

September 29, 2026

Advisory Details (2)

Auto-updated Sep 28, 2026
Upstream fix merged — awaiting tagged release. Sources: github_pr.
generic
https://lists.apache.org/thread/dxqmd3873q87h06xpjjc9lnvp4jblz0l
github_pr

Remove legacy outbound trackback action

Fix merged in apache/roller PR #163 on 2026-09-05 — awaiting tagged release

https://github.com/apache/roller/pull/163

Vendor Advisories for CVE-2026-82376(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 30× in last 7d / 35× 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. 2026-10-05 07:13 UTCEG score recompute
  2. 2026-10-05 07:13 UTCGHSA enrichment
  3. 2026-10-04 23:22 UTCEPSS rescore
  4. 2026-10-04 18:55 UTCGHSA enrichment
  5. 2026-10-04 06:34 UTCGHSA enrichment
  6. 2026-10-03 18:17 UTCEG score recompute
  7. 2026-10-03 18:17 UTCGHSA enrichment
  8. 2026-10-03 14:26 UTCEPSS rescore
  9. 2026-10-03 05:55 UTCEG score recompute
  10. 2026-10-03 05:55 UTCGHSA enrichment
  11. 2026-10-02 17:57 UTCEPSS rescore
  12. 2026-10-02 17:37 UTCGHSA enrichment
  13. 2026-10-02 05:20 UTCEG score recompute
  14. 2026-10-02 05:20 UTCGHSA enrichment
  15. 2026-10-01 19:50 UTCEPSS rescore
  16. 2026-10-01 17:00 UTCGHSA enrichment
  17. 2026-10-01 04:38 UTCGHSA enrichment
  18. 2026-09-30 16:17 UTCEG score recompute
  19. 2026-09-30 16:17 UTCGHSA enrichment
  20. 2026-09-30 15:04 UTCEPSS rescore
  21. 2026-09-30 03:42 UTCGHSA enrichment
  22. 2026-09-29 15:25 UTCEG score recompute
  23. 2026-09-29 15:25 UTCGHSA enrichment
  24. 2026-09-29 14:59 UTCEG score recompute
  25. 2026-09-29 14:59 UTCGHSA enrichment
Show 10 more
  1. 2026-09-29 02:48 UTCEG score recompute
  2. 2026-09-29 02:48 UTCGHSA enrichment
  3. 2026-09-28 14:30 UTCEG score recompute
  4. 2026-09-28 14:30 UTCGHSA enrichment
  5. 2026-09-28 13:52 UTCEPSS rescore
  6. 2026-09-28 09:32 UTCEG score recompute
  7. 2026-09-28 09:32 UTCGHSA enrichment
  8. 2026-09-28 08:29 UTCEG score recompute
  9. 2026-09-28 07:47 UTCEG score recompute
  10. 2026-09-28 07:47 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-82376?
CVE-2026-82376 is a high vulnerability published on September 28, 2026. Improper Restriction of XML External Entity Reference in Apache Roller 6.1.5 allows a user with entry-editing rights on a weblog to cause the server to parse an attacker-influenced trackback response with an XML parser that does not disable external entity resolution, leading to disclosure of files…
When was CVE-2026-82376 disclosed?
CVE-2026-82376 was first published on September 28, 2026, with the most recent update on September 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-82376 actively exploited?
CVE-2026-82376 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (20th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-82376?
CVE-2026-82376 has a CVSS base score of 7.7 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-82376?
An upstream fix for CVE-2026-82376 has been merged but is not yet in a tagged release. Until it ships, restrict network exposure of the affected system or apply the vendor's mitigation, then update to the release that contains the fix. The vendor advisories EchelonGraph has for CVE-2026-82376 are linked in the Vendor Advisories panel on this page.

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