CVE-2026-15154

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreMEDIUM confidence

Score 6.5 from GitHub Security Advisory published 2026-07-08. A secondary CVSS source baseline 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 6.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

A flaw was found in guardrails-detectors, a component of Red Hat OpenShift AI. This vulnerability, known as Regular Expression Denial of Service (ReDoS), allows a remote attacker to provide specially crafted regular expressions to the public detection API. This can cause catastrophic backtracking, leading to a worker process consuming 100% CPU indefinitely and resulting in a denial of service for the entire guardrails-mediated LLM pipeline.

CVSS v3
6.5
EG Score
6.5MEDIUMmedium confidence
EG Risk
29
EG Risk 29/100CISA 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
Severity65% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.5%
EPSS %ILE
39th
KEV
Not listed

CISA SSVCTrack at every mission impact level.

A fix is available. Apply it within your standard update timelines.

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

July 8, 2026

Last Modified

September 30, 2026

Advisory Details (2)

Auto-updated Jul 8, 2026
Patch available. Sources: redhat.
redhat

2498188 – (CVE-2026-15154) CVE-2026-15154 guardrails-detectors: guardrails-detectors: Unauthenticated Regular-Expression Denial of Service (ReDoS) via detector_params.regex

https://bugzilla.redhat.com/show_bug.cgi?id=2498188
redhatMentions a patch (unverified)

cve-details

https://access.redhat.com/security/cve/CVE-2026-15154

Vendor Advisories for CVE-2026-15154(7)

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

Patch Availability(6)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatrhoai/odh-built-in-detector-rhel9:17895730322026-09-30redhat
redhatrhoai/odh-built-in-detector-rhel9:17872359252026-09-08redhat
redhatrhoai/odh-built-in-detector-rhel9:17866173162026-08-27redhat
redhatrhoai/odh-built-in-detector-rhel9:17851378802026-08-11redhat
redhatrhoai/odh-built-in-detector-rhel9:17835691452026-08-11redhat
redhatrhoai/odh-built-in-detector-rhel9:17842309642026-08-11redhat

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.

Data Freshness Timeline

(refreshed 7× in last 7d / 49× 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 231 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-15154?
CVE-2026-15154 is a medium vulnerability published on July 8, 2026. A flaw was found in guardrails-detectors, a component of Red Hat OpenShift AI. This vulnerability, known as Regular Expression Denial of Service (ReDoS), allows a remote attacker to provide specially crafted regular expressions to the public detection API. This can cause catastrophic backtracking,…
When was CVE-2026-15154 disclosed?
CVE-2026-15154 was first published on July 8, 2026, with the most recent update on September 30, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-15154 actively exploited?
CVE-2026-15154 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (39th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-15154?
CVE-2026-15154 has a CVSS base score of 6.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-15154?
A fix for CVE-2026-15154 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-15154 are linked in the Vendor Advisories panel on this page.

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