CVE-2026-11873

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreHIGH confidence

Score 6.5 from GitHub Security Advisory published 2026-09-01. a secondary CVSS source baseline 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.5Exploit: None knownExposed: 0

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

An Apache-proxied Dogtag CA REST endpoint exposed by IdM (POST /ca/rest/certrequests) returns HTTP 500 with internal Java stack traces for unauthenticated malformed requests. The same unauthenticated error path emits large multi-line stack traces into the CA debug log, creating a log-amplification resource exhaustion vector (disk growth and I/O contention) without requiring authentication.

CVSS v3
6.5
EG Score
6.5(high)
EG Risk
44(Track)
EG Risk 44/100SSVC: 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
Severity65% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
26%
KEV
Not listed

Published

September 1, 2026

Last Modified

September 1, 2026

Advisory Details (2)

Auto-updated Sep 1, 2026
Patch available. Sources: redhat.
redhat

2487505 – (CVE-2026-11873) CVE-2026-11873 pki-core: dogtag-pki: empty request to Dogtag /ca/rest/certrequests causes HTTP 500, java exception, and stacktrace disclosure

https://bugzilla.redhat.com/show_bug.cgi?id=2487505
redhat Patch Available

CVE-2026-11873 - Red Hat Customer Portal

Affected: Red Hat Enterprise Linux 8 or OpenShift Container Platform 4, is affected by this vulnerability and a fix may be released to a

https://access.redhat.com/security/cve/CVE-2026-11873

Vendor Advisories for CVE-2026-11873(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 16× in last 7d / 57× 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. 2026-09-19 19:21 UTCEG score recompute
  2. 2026-09-19 19:21 UTCGHSA enrichment
  3. 2026-09-18 19:57 UTCEG score recompute
  4. 2026-09-18 19:57 UTCGHSA enrichment
  5. 2026-09-18 19:27 UTCEPSS rescore
  6. 2026-09-17 20:46 UTCEG score recompute
  7. 2026-09-17 20:46 UTCGHSA enrichment
  8. 2026-09-16 18:42 UTCEG score recompute
  9. 2026-09-16 18:42 UTCGHSA enrichment
  10. 2026-09-16 05:14 UTCEPSS rescore
  11. 2026-09-15 18:45 UTCEG score recompute
  12. 2026-09-15 18:45 UTCGHSA enrichment
  13. 2026-09-14 19:34 UTCGHSA enrichment
  14. 2026-09-13 20:23 UTCEG score recompute
  15. 2026-09-13 20:23 UTCGHSA enrichment
  16. 2026-09-13 16:46 UTCEPSS rescore
  17. 2026-09-12 21:12 UTCEG score recompute
  18. 2026-09-12 21:12 UTCGHSA enrichment
  19. 2026-09-12 15:00 UTCEPSS rescore
  20. 2026-09-11 22:01 UTCEG score recompute
  21. 2026-09-11 22:01 UTCGHSA enrichment
  22. 2026-09-11 14:52 UTCEPSS rescore
  23. 2026-09-11 09:36 UTCEPSS rescore
  24. 2026-09-10 22:50 UTCEG score recompute
  25. 2026-09-10 22:50 UTCGHSA enrichment
Show 32 more
  1. 2026-09-10 09:34 UTCEPSS rescore
  2. 2026-09-09 23:39 UTCGHSA enrichment
  3. 2026-09-08 23:27 UTCEG score recompute
  4. 2026-09-08 23:27 UTCGHSA enrichment
  5. 2026-09-08 22:00 UTCEPSS rescore
  6. 2026-09-07 16:31 UTCEG score recompute
  7. 2026-09-07 16:31 UTCGHSA enrichment
  8. 2026-09-07 16:01 UTCEPSS rescore
  9. 2026-09-06 17:20 UTCEG score recompute
  10. 2026-09-06 17:20 UTCGHSA enrichment
  11. 2026-09-06 13:47 UTCEPSS rescore
  12. 2026-09-05 18:08 UTCEG score recompute
  13. 2026-09-05 18:08 UTCGHSA enrichment
  14. 2026-09-04 18:52 UTCEG score recompute
  15. 2026-09-04 18:52 UTCGHSA enrichment
  16. 2026-09-04 05:06 UTCEPSS rescore
  17. 2026-09-03 19:40 UTCGHSA enrichment
  18. 2026-09-02 20:22 UTCEG score recompute
  19. 2026-09-02 20:22 UTCGHSA enrichment
  20. 2026-09-02 14:11 UTCEPSS rescore
  21. 2026-09-01 21:09 UTCGHSA enrichment
  22. 2026-09-01 18:25 UTCEG score recompute
  23. 2026-09-01 18:25 UTCGHSA enrichment
  24. 2026-09-01 17:49 UTCEG score recompute
  25. 2026-09-01 17:49 UTCGHSA enrichment
  26. 2026-09-01 13:41 UTCEG score recompute
  27. 2026-09-01 13:41 UTCGHSA enrichment
  28. 2026-09-01 13:00 UTCEG score recompute
  29. 2026-09-01 13:00 UTCGHSA enrichment
  30. 2026-09-01 12:25 UTCEG score recompute
  31. 2026-09-01 12:02 UTCEG score recompute
  32. 2026-09-01 12:01 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-11873?
CVE-2026-11873 is a medium vulnerability published on September 1, 2026. An Apache-proxied Dogtag CA REST endpoint exposed by IdM (POST /ca/rest/certrequests) returns HTTP 500 with internal Java stack traces for unauthenticated malformed requests. The same unauthenticated error path emits large multi-line stack traces into the CA debug log, creating a log-amplification…
When was CVE-2026-11873 disclosed?
CVE-2026-11873 was first published in the National Vulnerability Database on September 1, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-11873 actively exploited?
CVE-2026-11873 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 74.4% of all scored CVEs.
What is the CVSS score of CVE-2026-11873?
CVE-2026-11873 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2026-11873?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-11873, 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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