CVE-2026-21761

MEDIUMNVD 5.45.4—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.4 under NVD CVSS v3. EPSS exploit probability: 0.1%, top 96% of all CVEs by exploit prediction. GitHub Security Advisory enrichment pending alignment with NVD CVSS.

Triggered by: NVD CVSS baseline
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
5.4EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.4Exploit: None knownExposed: 0

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

HCL DevOps Loop is affected by a Cross-Origin Resource Sharing (CORS) misconfiguration. Improper CORS configuration may allow unauthorized cross-origin requests, potentially exposing application resources to untrusted domains.

CVSS v3
5.4
EG Score
5.4(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
Severity54% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
4%
KEV
Not listed

Published

July 17, 2026

Last Modified

August 13, 2026

Advisory Details (1)

Auto-updated Jul 17, 2026
No patch confirmed yet.
generic

Security Bulletin: Multiple security vulnerabilities affect HCL DevOps Loop - Customer Support

https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0132296

Vendor Advisories for CVE-2026-21761(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 10× in last 7d / 68× 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 137 total refreshes for this CVE.

  1. 2026-09-11 14:52 UTCEPSS rescore
  2. 2026-09-10 09:34 UTCEPSS rescore
  3. 2026-09-08 22:00 UTCEPSS rescore
  4. 2026-09-08 00:00 UTCEG score recompute
  5. 2026-09-08 00:00 UTCGHSA enrichment
  6. 2026-09-07 16:01 UTCEPSS rescore
  7. 2026-09-06 13:47 UTCEPSS rescore
  8. 2026-09-06 13:47 UTCEPSS rescore
  9. 2026-09-05 20:26 UTCEG score recompute
  10. 2026-09-05 20:26 UTCGHSA enrichment
  11. 2026-09-04 05:06 UTCEPSS rescore
  12. 2026-09-02 14:11 UTCEPSS rescore
  13. 2026-09-01 13:53 UTCEPSS rescore
  14. 2026-09-01 04:39 UTCEPSS rescore
  15. 2026-08-31 01:54 UTCEG score recompute
  16. 2026-08-31 01:54 UTCGHSA enrichment
  17. 2026-08-30 19:17 UTCEPSS rescore
  18. 2026-08-30 03:17 UTCEG score recompute
  19. 2026-08-30 03:17 UTCGHSA enrichment
  20. 2026-08-30 01:22 UTCEPSS rescore
  21. 2026-08-28 21:41 UTCEPSS rescore
  22. 2026-08-27 21:25 UTCEG score recompute
  23. 2026-08-27 21:25 UTCGHSA enrichment
  24. 2026-08-27 14:25 UTCEPSS rescore
  25. 2026-08-26 22:36 UTCEG score recompute
Show 75 more
  1. 2026-08-26 22:35 UTCGHSA enrichment
  2. 2026-08-26 14:46 UTCEPSS rescore
  3. 2026-08-25 20:21 UTCEG score recompute
  4. 2026-08-25 20:21 UTCGHSA enrichment
  5. 2026-08-25 13:48 UTCEPSS rescore
  6. 2026-08-24 20:54 UTCEG score recompute
  7. 2026-08-24 20:54 UTCGHSA enrichment
  8. 2026-08-23 22:16 UTCEG score recompute
  9. 2026-08-23 22:16 UTCGHSA enrichment
  10. 2026-08-23 00:19 UTCEPSS rescore
  11. 2026-08-22 23:28 UTCGHSA enrichment
  12. 2026-08-22 00:51 UTCEG score recompute
  13. 2026-08-22 00:51 UTCGHSA enrichment
  14. 2026-08-21 23:49 UTCEPSS rescore
  15. 2026-08-21 02:14 UTCEG score recompute
  16. 2026-08-21 02:14 UTCGHSA enrichment
  17. 2026-08-20 22:55 UTCEPSS rescore
  18. 2026-08-20 03:37 UTCEG score recompute
  19. 2026-08-20 03:37 UTCGHSA enrichment
  20. 2026-08-19 17:03 UTCEPSS rescore
  21. 2026-08-19 04:58 UTCEG score recompute
  22. 2026-08-19 04:58 UTCGHSA enrichment
  23. 2026-08-18 13:48 UTCEPSS rescore
  24. 2026-08-18 06:19 UTCEG score recompute
  25. 2026-08-18 06:19 UTCGHSA enrichment
  26. 2026-08-17 13:47 UTCEPSS rescore
  27. 2026-08-17 07:42 UTCEG score recompute
  28. 2026-08-17 07:42 UTCGHSA enrichment
  29. 2026-08-16 14:56 UTCEPSS rescore
  30. 2026-08-16 09:05 UTCEG score recompute
  31. 2026-08-16 09:05 UTCGHSA enrichment
  32. 2026-08-16 02:14 UTCEPSS rescore
  33. 2026-08-15 10:28 UTCEG score recompute
  34. 2026-08-15 10:28 UTCGHSA enrichment
  35. 2026-08-15 01:30 UTCEPSS rescore
  36. 2026-08-14 11:51 UTCEG score recompute
  37. 2026-08-14 11:51 UTCGHSA enrichment
  38. 2026-08-13 22:00 UTCEPSS rescore
  39. 2026-08-13 13:14 UTCEG score recompute▲ 1.20
  40. 2026-08-13 13:14 UTCGHSA enrichment
  41. 2026-08-13 13:13 UTCNVD updateCVSS v3 → 5.4
  42. 2026-08-13 09:21 UTCEG score recompute
  43. 2026-08-13 09:21 UTCGHSA enrichment
  44. 2026-08-12 13:50 UTCEPSS rescore
  45. 2026-08-12 10:45 UTCEG score recompute
  46. 2026-08-12 10:45 UTCGHSA enrichment
  47. 2026-08-11 13:42 UTCEPSS rescore
  48. 2026-08-11 12:08 UTCEG score recompute
  49. 2026-08-11 12:08 UTCGHSA enrichment
  50. 2026-08-11 00:00 UTCEPSS rescore
  51. 2026-08-10 13:30 UTCGHSA enrichment
  52. 2026-08-09 14:50 UTCEG score recompute
  53. 2026-08-09 14:50 UTCGHSA enrichment
  54. 2026-08-09 13:46 UTCEPSS rescore
  55. 2026-08-08 16:37 UTCEPSS rescore
  56. 2026-08-08 16:14 UTCGHSA enrichment
  57. 2026-08-07 17:37 UTCGHSA enrichment
  58. 2026-08-06 19:00 UTCEG score recompute
  59. 2026-08-06 19:00 UTCGHSA enrichment
  60. 2026-08-06 13:46 UTCEPSS rescore
  61. 2026-08-05 20:23 UTCEG score recompute
  62. 2026-08-05 20:23 UTCGHSA enrichment
  63. 2026-08-05 19:17 UTCEPSS rescore
  64. 2026-08-04 21:46 UTCEG score recompute
  65. 2026-08-04 21:46 UTCGHSA enrichment
  66. 2026-08-04 15:10 UTCEPSS rescore
  67. 2026-08-04 10:38 UTCEPSS rescore
  68. 2026-08-03 23:07 UTCEG score recompute
  69. 2026-08-03 23:07 UTCGHSA enrichment
  70. 2026-08-03 10:35 UTCEPSS rescore
  71. 2026-08-03 00:30 UTCEG score recompute
  72. 2026-08-03 00:30 UTCGHSA enrichment
  73. 2026-08-02 02:26 UTCEPSS rescore
  74. 2026-08-02 01:53 UTCEG score recompute
  75. 2026-08-02 01:53 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2026-21761?
CVE-2026-21761 is a medium vulnerability published on July 17, 2026. HCL DevOps Loop is affected by a Cross-Origin Resource Sharing (CORS) misconfiguration. Improper CORS configuration may allow unauthorized cross-origin requests, potentially exposing application resources to untrusted domains.
When was CVE-2026-21761 disclosed?
CVE-2026-21761 was first published in the National Vulnerability Database on July 17, 2026, with the most recent update on August 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-21761 actively exploited?
CVE-2026-21761 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 95.8% of all scored CVEs.
What is the CVSS score of CVE-2026-21761?
CVE-2026-21761 has a CVSS v3 base score of 5.4 (NVD).
How do I remediate CVE-2026-21761?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-21761, 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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