CVE-2026-102497

HIGHPre-NVD 7.57.5—
EchelonGraph scoreHIGH confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-09-29. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 5 sources updated this week
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 7.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

The Apache XmlSchema walker (xmlschema-walker) doesn't detect cycles in type derivation, substitution groups, model groups or attribute groups. A malicious schema with such a cycle can make the walker recurse until the stack overflows, causing a denial of service.

Users are recommended to upgrade to version 2.3.3, which fixes this issue.

CVSS v3
7.5
EG Score
7.5HIGHhigh confidence
EG Risk
49
EG Risk 49/100CISA 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
Severity75% × 45%
Exploitation0% × 40%
Automatability100% × 15%
CISA SSVC: Track at low or medium mission impact; Attend at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.4%
EPSS %ILE
27th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (CISA Vulnrichment) · Automatable yes (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 29, 2026

Last Modified

September 29, 2026

Advisory Details (1)

Auto-updated Sep 29, 2026
Fix named in the CVE record.
generic

Pony Mail

https://lists.apache.org/thread/1cj02tobjyhjqq723bvg78yxkqt1lk7k

Vendor Advisories for CVE-2026-102497(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 25× in last 7d / 25× 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. 2026-10-04 04:35 UTCGHSA enrichment
  2. 2026-10-03 15:42 UTCEG score recompute
  3. 2026-10-03 15:42 UTCGHSA enrichment
  4. 2026-10-03 14:25 UTCEPSS rescore
  5. 2026-10-03 02:45 UTCEG score recompute
  6. 2026-10-03 02:45 UTCGHSA enrichment
  7. 2026-10-02 13:52 UTCGHSA enrichment
  8. 2026-10-02 00:57 UTCEG score recompute
  9. 2026-10-02 00:57 UTCGHSA enrichment
  10. 2026-10-01 19:49 UTCEPSS rescore
  11. 2026-10-01 12:04 UTCGHSA enrichment
  12. 2026-09-30 23:11 UTCEG score recompute
  13. 2026-09-30 23:10 UTCGHSA enrichment
  14. 2026-09-30 15:02 UTCEPSS rescore
  15. 2026-09-30 10:15 UTCEG score recompute
  16. 2026-09-30 10:15 UTCGHSA enrichment
  17. 2026-09-29 21:21 UTCGHSA enrichment
  18. 2026-09-29 20:30 UTCEG score recompute▲ 7.50
  19. 2026-09-29 20:29 UTCGHSA enrichment
  20. 2026-09-29 20:29 UTCMITRE cvelistV5CVSS v3 → 7.5 · severity → HIGH
  21. 2026-09-29 16:05 UTCGHSA enrichment
  22. 2026-09-29 13:43 UTCGHSA enrichment
  23. 2026-09-29 12:33 UTCNVD update
  24. 2026-09-29 11:49 UTCEG score recompute
  25. 2026-09-29 11:48 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-102497?
CVE-2026-102497 is a high vulnerability published on September 29, 2026. The Apache XmlSchema walker (xmlschema-walker) doesn't detect cycles in type derivation, substitution groups, model groups or attribute groups. A malicious schema with such a cycle can make the walker recurse until the stack overflows, causing a denial of service. Users are recommended to upgrade…
When was CVE-2026-102497 disclosed?
CVE-2026-102497 was first published 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-2026-102497 actively exploited?
CVE-2026-102497 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (27th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-102497?
CVE-2026-102497 has a CVSS v3.1 base score of 7.5 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-102497?
A fix for CVE-2026-102497 is available — its CVE record says: "Users are recommended to upgrade to version 2.3.3, which fixes this issue." The vendor advisories EchelonGraph has for CVE-2026-102497 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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