CVE-2025-12799

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreMEDIUM confidence

Score 6.5 from GitHub Security Advisory published 2026-07-07. a secondary CVSS source baseline 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 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

A fix is available — apply it.

A flaw was found in Jastow. Jastow is vulnerable to Cross-Site Scripting (XSS) attack. If using a set of combined configuration to allow unescaped characters in URL with embedded Undertow and Jastow, a server might be vulnerable to improper input handling.

CVSS v3
6.5
EG Score
6.5(medium)
EG Risk
29(Track)
EG Risk 29/100SSVC: 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%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
34%
KEV
Not listed

Published

July 7, 2026

Last Modified

July 29, 2026

Advisory Details (2)

Auto-updated Jul 7, 2026
Patch available. Sources: redhat.
redhat Patch Available

2413071 – (CVE-2025-12799) CVE-2025-12799 jastow: Jastow Cross-Site Scripting attack due to unsanitized URI

https://bugzilla.redhat.com/show_bug.cgi?id=2413071
redhat Patch Available

cve-details

https://access.redhat.com/security/cve/CVE-2025-12799

Vendor Advisories for CVE-2025-12799(1)

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

Patch Availability(4)

Vendor / EcosystemFixed in / PatchReleasedSource
redhateap8-wildfly-javadocs-0:8.1.1-11.GA_redhat_00019.1.el9eap2026-07-07redhat
redhateap8-yasson-0:3.0.4-5.redhat_00007.1.el10eap2026-07-07redhat
redhatio.undertow.jastow/jastow:2.2.9.SP1-redhat-000012026-07-07redhat
redhateap8-wildfly-javadocs-0:8.1.1-11.GA_redhat_00019.1.el8eap2026-07-07redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

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

All Vendor Advisories

(4)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 9× in last 7d / 77× 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.

Showing the most recent 100 of 194 total refreshes for this CVE.

  1. 2026-09-11 14:51 UTCEPSS rescore
  2. 2026-09-11 09:35 UTCEPSS rescore
  3. 2026-09-10 09:33 UTCEPSS rescore
  4. 2026-09-08 21:59 UTCEPSS rescore
  5. 2026-09-07 16:00 UTCEPSS rescore
  6. 2026-09-06 13:46 UTCEPSS rescore
  7. 2026-09-05 22:54 UTCEG score recompute
  8. 2026-09-05 22:54 UTCVendor advisory
  9. 2026-09-05 22:54 UTCGHSA enrichment
  10. 2026-09-04 13:59 UTCEPSS rescore
  11. 2026-09-04 05:05 UTCEPSS rescore
  12. 2026-09-02 14:10 UTCEPSS rescore
  13. 2026-09-01 13:52 UTCEPSS rescore
  14. 2026-09-01 04:38 UTCEPSS rescore
  15. 2026-08-30 19:16 UTCEPSS rescore
  16. 2026-08-30 07:43 UTCEG score recompute
  17. 2026-08-30 07:43 UTCVendor advisory
  18. 2026-08-30 07:43 UTCGHSA enrichment
  19. 2026-08-30 01:21 UTCEPSS rescore
  20. 2026-08-28 21:40 UTCEPSS rescore
  21. 2026-08-27 21:55 UTCEG score recompute
  22. 2026-08-27 21:55 UTCVendor advisory
  23. 2026-08-27 21:55 UTCGHSA enrichment
  24. 2026-08-27 14:24 UTCEPSS rescore
  25. 2026-08-26 14:45 UTCEPSS rescore
Show 75 more
  1. 2026-08-26 13:49 UTCEG score recompute
  2. 2026-08-26 13:49 UTCVendor advisory
  3. 2026-08-26 13:49 UTCGHSA enrichment
  4. 2026-08-25 13:47 UTCEPSS rescore
  5. 2026-08-25 11:54 UTCEG score recompute
  6. 2026-08-25 11:54 UTCVendor advisory
  7. 2026-08-25 11:54 UTCGHSA enrichment
  8. 2026-08-24 14:15 UTCEPSS rescore
  9. 2026-08-24 09:50 UTCEG score recompute
  10. 2026-08-24 09:50 UTCVendor advisory
  11. 2026-08-24 09:50 UTCGHSA enrichment
  12. 2026-08-23 06:36 UTCEG score recompute
  13. 2026-08-23 06:36 UTCVendor advisory
  14. 2026-08-23 06:36 UTCGHSA enrichment
  15. 2026-08-23 00:18 UTCEPSS rescore
  16. 2026-08-22 05:23 UTCEG score recompute
  17. 2026-08-22 05:23 UTCVendor advisory
  18. 2026-08-22 05:23 UTCGHSA enrichment
  19. 2026-08-21 23:48 UTCEPSS rescore
  20. 2026-08-21 04:11 UTCEG score recompute
  21. 2026-08-21 04:11 UTCVendor advisory
  22. 2026-08-21 04:11 UTCGHSA enrichment
  23. 2026-08-20 22:54 UTCEPSS rescore
  24. 2026-08-20 02:16 UTCEG score recompute
  25. 2026-08-20 02:16 UTCVendor advisory
  26. 2026-08-20 02:16 UTCGHSA enrichment
  27. 2026-08-19 17:02 UTCEPSS rescore
  28. 2026-08-18 20:48 UTCEG score recompute
  29. 2026-08-18 20:48 UTCVendor advisory
  30. 2026-08-18 20:47 UTCGHSA enrichment
  31. 2026-08-18 13:47 UTCEPSS rescore
  32. 2026-08-17 15:50 UTCEG score recompute
  33. 2026-08-17 15:50 UTCVendor advisory
  34. 2026-08-17 15:50 UTCGHSA enrichment
  35. 2026-08-17 13:46 UTCEPSS rescore
  36. 2026-08-16 14:55 UTCEPSS rescore
  37. 2026-08-16 14:38 UTCEG score recompute
  38. 2026-08-16 14:38 UTCVendor advisory
  39. 2026-08-16 14:38 UTCGHSA enrichment
  40. 2026-08-16 02:13 UTCEPSS rescore
  41. 2026-08-16 02:13 UTCEPSS rescore
  42. 2026-08-15 13:24 UTCEG score recompute
  43. 2026-08-15 13:24 UTCVendor advisory
  44. 2026-08-15 13:24 UTCGHSA enrichment
  45. 2026-08-15 01:29 UTCEPSS rescore
  46. 2026-08-14 12:12 UTCEG score recompute
  47. 2026-08-14 12:12 UTCVendor advisory
  48. 2026-08-14 12:12 UTCGHSA enrichment
  49. 2026-08-13 21:59 UTCEPSS rescore
  50. 2026-08-13 11:00 UTCEG score recompute
  51. 2026-08-13 11:00 UTCVendor advisory
  52. 2026-08-13 11:00 UTCGHSA enrichment
  53. 2026-08-12 13:49 UTCEPSS rescore
  54. 2026-08-12 09:48 UTCEG score recompute
  55. 2026-08-12 09:48 UTCVendor advisory
  56. 2026-08-12 09:48 UTCGHSA enrichment
  57. 2026-08-11 13:41 UTCEPSS rescore
  58. 2026-08-11 08:37 UTCEG score recompute
  59. 2026-08-11 08:37 UTCVendor advisory
  60. 2026-08-11 08:36 UTCGHSA enrichment
  61. 2026-08-10 23:59 UTCEPSS rescore
  62. 2026-08-10 07:25 UTCEG score recompute
  63. 2026-08-10 07:25 UTCVendor advisory
  64. 2026-08-10 07:25 UTCGHSA enrichment
  65. 2026-08-09 13:45 UTCEPSS rescore
  66. 2026-08-09 06:13 UTCEG score recompute
  67. 2026-08-09 06:13 UTCVendor advisory
  68. 2026-08-09 06:13 UTCGHSA enrichment
  69. 2026-08-08 05:02 UTCEG score recompute
  70. 2026-08-08 05:02 UTCVendor advisory
  71. 2026-08-08 05:02 UTCGHSA enrichment
  72. 2026-08-07 16:26 UTCEPSS rescore
  73. 2026-08-07 03:50 UTCEG score recompute
  74. 2026-08-07 03:50 UTCVendor advisory
  75. 2026-08-07 03:50 UTCGHSA enrichment

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2025-12799?
CVE-2025-12799 is a medium vulnerability published on July 7, 2026. A flaw was found in Jastow. Jastow is vulnerable to Cross-Site Scripting (XSS) attack. If using a set of combined configuration to allow unescaped characters in URL with embedded Undertow and Jastow, a server might be vulnerable to improper input handling.
When was CVE-2025-12799 disclosed?
CVE-2025-12799 was first published in the National Vulnerability Database on July 7, 2026, with the most recent update on July 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-12799 actively exploited?
CVE-2025-12799 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 65.7% of all scored CVEs.
What is the CVSS score of CVE-2025-12799?
CVE-2025-12799 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2025-12799?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-12799, 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-2025-12799

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