CVE-2026-26445

HIGHPre-NVD 7.57.5—
EchelonGraph scoreHIGH confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-08-26. 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 — 3 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%CVSS: 7.5Exploit: None knownExposed: 0

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

stomper 5e2741e is vulnerable to Denial of Service. A malicious client can send partial STOMP frames and keep the TCP connections open, which, combined with the broker s use of edge-triggered epoll (EPOLLET) and MSG_PEEK in recv(), causes sockets to enter a permanent half-read state. When enough such connections accumulate, the broker stops receiving any further epoll events for those sockets and eventually hangs in epoll_wait, effectively refusing to process new messages.

CVSS v3
7.5
EG Score
7.5(high)
EG Risk
49(Track)
EG Risk 49/100SSVC: 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
Severity75% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
28%
KEV
Not listed

Published

August 26, 2026

Last Modified

September 2, 2026

Advisory Details (2)

Auto-updated Sep 2, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic

GitHub - mdoi/stomper: An implementation of message broker of the Streaming Text Orientated Messaging Protocol · GitHub

https://github.com/mdoi/stomper
generic🟡 PoC Available

bug_report/Stomp/stomper_vuln5.md at master · songxpu/bug_report · GitHub

https://github.com/songxpu/bug_report/blob/master/Stomp/stomper_vuln5.md

Vendor Advisories for CVE-2026-26445(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 29× in last 7d / 89× 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. 2026-09-20 20:15 UTCEPSS rescore
  2. 2026-09-20 20:15 UTCEPSS rescore
  3. 2026-09-20 14:18 UTCGHSA enrichment
  4. 2026-09-20 03:25 UTCGHSA enrichment
  5. 2026-09-19 16:32 UTCEG score recompute
  6. 2026-09-19 16:32 UTCGHSA enrichment
  7. 2026-09-19 05:40 UTCEG score recompute
  8. 2026-09-19 05:40 UTCGHSA enrichment
  9. 2026-09-18 19:28 UTCEPSS rescore
  10. 2026-09-18 19:27 UTCEPSS rescore
  11. 2026-09-18 18:47 UTCGHSA enrichment
  12. 2026-09-18 07:54 UTCGHSA enrichment
  13. 2026-09-17 21:00 UTCEG score recompute
  14. 2026-09-17 21:00 UTCGHSA enrichment
  15. 2026-09-17 19:30 UTCEPSS rescore
  16. 2026-09-17 08:26 UTCGHSA enrichment
  17. 2026-09-16 21:32 UTCEG score recompute
  18. 2026-09-16 21:32 UTCGHSA enrichment
  19. 2026-09-16 14:08 UTCEPSS rescore
  20. 2026-09-16 10:26 UTCEG score recompute
  21. 2026-09-16 10:26 UTCGHSA enrichment
  22. 2026-09-16 05:15 UTCEPSS rescore
  23. 2026-09-15 23:34 UTCGHSA enrichment
  24. 2026-09-15 11:53 UTCEG score recompute
  25. 2026-09-15 11:53 UTCGHSA enrichment
Show 64 more
  1. 2026-09-15 01:00 UTCGHSA enrichment
  2. 2026-09-14 14:07 UTCGHSA enrichment
  3. 2026-09-14 03:14 UTCEG score recompute
  4. 2026-09-14 03:14 UTCGHSA enrichment
  5. 2026-09-13 16:47 UTCEPSS rescore
  6. 2026-09-13 16:22 UTCGHSA enrichment
  7. 2026-09-13 05:29 UTCGHSA enrichment
  8. 2026-09-12 18:37 UTCEG score recompute
  9. 2026-09-12 18:37 UTCGHSA enrichment
  10. 2026-09-12 15:01 UTCEPSS rescore
  11. 2026-09-12 07:43 UTCGHSA enrichment
  12. 2026-09-11 20:49 UTCEG score recompute
  13. 2026-09-11 20:49 UTCGHSA enrichment
  14. 2026-09-11 14:52 UTCEPSS rescore
  15. 2026-09-11 09:43 UTCEG score recompute
  16. 2026-09-11 09:43 UTCGHSA enrichment
  17. 2026-09-10 22:50 UTCGHSA enrichment
  18. 2026-09-10 11:57 UTCEG score recompute
  19. 2026-09-10 11:57 UTCGHSA enrichment
  20. 2026-09-10 09:34 UTCEPSS rescore
  21. 2026-09-10 00:11 UTCGHSA enrichment
  22. 2026-09-09 11:47 UTCGHSA enrichment
  23. 2026-09-09 00:55 UTCEG score recompute
  24. 2026-09-09 00:55 UTCGHSA enrichment
  25. 2026-09-08 22:00 UTCEPSS rescore
  26. 2026-09-08 02:06 UTCEG score recompute
  27. 2026-09-08 02:06 UTCGHSA enrichment
  28. 2026-09-07 16:01 UTCEPSS rescore
  29. 2026-09-07 15:13 UTCGHSA enrichment
  30. 2026-09-07 03:19 UTCGHSA enrichment
  31. 2026-09-06 16:19 UTCEG score recompute
  32. 2026-09-06 16:19 UTCGHSA enrichment
  33. 2026-09-06 13:47 UTCEPSS rescore
  34. 2026-09-06 13:47 UTCEPSS rescore
  35. 2026-09-06 05:26 UTCGHSA enrichment
  36. 2026-09-05 18:32 UTCEG score recompute
  37. 2026-09-05 18:32 UTCGHSA enrichment
  38. 2026-09-05 07:40 UTCGHSA enrichment
  39. 2026-09-04 20:47 UTCEG score recompute
  40. 2026-09-04 20:47 UTCGHSA enrichment
  41. 2026-09-04 09:10 UTCEG score recompute
  42. 2026-09-04 09:09 UTCGHSA enrichment
  43. 2026-09-04 05:06 UTCEPSS rescore
  44. 2026-09-03 22:16 UTCGHSA enrichment
  45. 2026-09-03 11:23 UTCGHSA enrichment
  46. 2026-09-03 00:27 UTCEG score recompute
  47. 2026-09-03 00:27 UTCGHSA enrichment
  48. 2026-09-02 14:11 UTCEPSS rescore
  49. 2026-09-02 13:35 UTCGHSA enrichment
  50. 2026-09-02 12:35 UTCEG score recompute▲ 7.50
  51. 2026-09-02 12:35 UTCGHSA enrichment
  52. 2026-09-02 12:33 UTCMITRE cvelistV5CVSS v3 → 7.5 · severity → HIGH
  53. 2026-09-01 13:53 UTCEPSS rescore
  54. 2026-09-01 04:39 UTCEPSS rescore
  55. 2026-09-01 04:14 UTCGHSA enrichment
  56. 2026-08-30 19:17 UTCEPSS rescore
  57. 2026-08-30 01:22 UTCEPSS rescore
  58. 2026-08-28 21:41 UTCEG score recompute
  59. 2026-08-28 21:41 UTCGHSA enrichment
  60. 2026-08-28 21:41 UTCEPSS rescore
  61. 2026-08-27 14:25 UTCEPSS rescore
  62. 2026-08-26 20:24 UTCNVD update
  63. 2026-08-26 20:07 UTCEG score recompute
  64. 2026-08-26 20:06 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-26445?
CVE-2026-26445 is a high vulnerability published on August 26, 2026. stomper 5e2741e is vulnerable to Denial of Service. A malicious client can send partial STOMP frames and keep the TCP connections open, which, combined with the broker s use of edge-triggered epoll (EPOLLET) and MSGPEEK in recv(), causes sockets to enter a permanent half-read state. When enough…
When was CVE-2026-26445 disclosed?
CVE-2026-26445 was first published in the National Vulnerability Database on August 26, 2026, with the most recent update on September 2, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-26445 actively exploited?
CVE-2026-26445 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 72.0% of all scored CVEs.
What is the CVSS score of CVE-2026-26445?
CVE-2026-26445 has a CVSS v3.1 base score of 7.5 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-26445?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-26445, 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.

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