CVE-2026-26446

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 weekElevated
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: Elevated riskExposed: 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. When a broker sends data to a client whose TCP connection was already closed by the peer, the server process receives SIGPIPE and immediately terminates, resulting in a denial of service. Any unauthenticated client can trigger the crash by closing the socket at specific points.

CVSS v3
7.5
EG Score
7.5(high)
EG Risk
65(Attend)
EG Risk 65/100SSVC: Attend

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%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
0%
EPSS %ILE
28%
KEV
Not listed

Published

August 26, 2026

Last Modified

August 28, 2026

Advisory Details (2)

Auto-updated Aug 27, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

bug_report/Stomp/stomper_vuln2.md at master · songxpu/bug_report · GitHub

https://github.com/songxpu/bug_report/blob/master/Stomp/stomper_vuln2.md
generic

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

https://github.com/mdoi/stomper

Vendor Advisories for CVE-2026-26446(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 26× in last 7d / 90× 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. 2026-09-19 13:10 UTCGHSA enrichment
  2. 2026-09-18 23:59 UTCEG score recompute
  3. 2026-09-18 23:58 UTCGHSA enrichment
  4. 2026-09-18 19:28 UTCEPSS rescore
  5. 2026-09-18 19:27 UTCEPSS rescore
  6. 2026-09-18 10:48 UTCGHSA enrichment
  7. 2026-09-17 21:37 UTCEG score recompute
  8. 2026-09-17 21:37 UTCGHSA enrichment
  9. 2026-09-17 19:30 UTCEPSS rescore
  10. 2026-09-17 08:26 UTCGHSA enrichment
  11. 2026-09-16 19:10 UTCEG score recompute
  12. 2026-09-16 19:10 UTCGHSA enrichment
  13. 2026-09-16 14:08 UTCEPSS rescore
  14. 2026-09-16 05:15 UTCEPSS rescore
  15. 2026-09-16 04:48 UTCGHSA enrichment
  16. 2026-09-15 15:36 UTCEG score recompute
  17. 2026-09-15 15:36 UTCGHSA enrichment
  18. 2026-09-15 02:22 UTCGHSA enrichment
  19. 2026-09-14 13:08 UTCGHSA enrichment
  20. 2026-09-13 23:57 UTCEG score recompute
  21. 2026-09-13 23:57 UTCGHSA enrichment
  22. 2026-09-13 16:47 UTCEPSS rescore
  23. 2026-09-13 10:46 UTCGHSA enrichment
  24. 2026-09-12 21:35 UTCEG score recompute
  25. 2026-09-12 21:35 UTCGHSA enrichment
Show 65 more
  1. 2026-09-12 15:01 UTCEPSS rescore
  2. 2026-09-12 08:23 UTCGHSA enrichment
  3. 2026-09-11 19:11 UTCEG score recompute
  4. 2026-09-11 19:11 UTCGHSA enrichment
  5. 2026-09-11 14:52 UTCEPSS rescore
  6. 2026-09-11 05:43 UTCGHSA enrichment
  7. 2026-09-10 16:32 UTCEG score recompute
  8. 2026-09-10 16:32 UTCGHSA enrichment
  9. 2026-09-10 09:34 UTCEPSS rescore
  10. 2026-09-10 03:21 UTCGHSA enrichment
  11. 2026-09-09 14:10 UTCGHSA enrichment
  12. 2026-09-09 00:55 UTCEG score recompute
  13. 2026-09-09 00:55 UTCGHSA enrichment
  14. 2026-09-08 22:00 UTCEPSS rescore
  15. 2026-09-08 11:29 UTCGHSA enrichment
  16. 2026-09-07 21:42 UTCEG score recompute
  17. 2026-09-07 21:42 UTCGHSA enrichment
  18. 2026-09-07 16:01 UTCEPSS rescore
  19. 2026-09-07 08:30 UTCGHSA enrichment
  20. 2026-09-06 19:10 UTCEG score recompute
  21. 2026-09-06 19:10 UTCGHSA enrichment
  22. 2026-09-06 13:47 UTCEPSS rescore
  23. 2026-09-06 13:47 UTCEPSS rescore
  24. 2026-09-06 05:55 UTCGHSA enrichment
  25. 2026-09-05 16:44 UTCEG score recompute
  26. 2026-09-05 16:44 UTCGHSA enrichment
  27. 2026-09-05 03:32 UTCGHSA enrichment
  28. 2026-09-04 14:21 UTCEG score recompute
  29. 2026-09-04 14:21 UTCGHSA enrichment
  30. 2026-09-04 05:06 UTCEPSS rescore
  31. 2026-09-04 01:07 UTCGHSA enrichment
  32. 2026-09-03 11:51 UTCGHSA enrichment
  33. 2026-09-02 22:17 UTCEG score recompute
  34. 2026-09-02 22:17 UTCGHSA enrichment
  35. 2026-09-02 14:11 UTCEPSS rescore
  36. 2026-09-02 09:02 UTCGHSA enrichment
  37. 2026-09-01 19:47 UTCEG score recompute
  38. 2026-09-01 19:47 UTCGHSA enrichment
  39. 2026-09-01 13:53 UTCEPSS rescore
  40. 2026-09-01 06:33 UTCEG score recompute
  41. 2026-09-01 06:33 UTCGHSA enrichment
  42. 2026-09-01 04:39 UTCEPSS rescore
  43. 2026-08-31 17:22 UTCGHSA enrichment
  44. 2026-08-31 02:35 UTCEG score recompute
  45. 2026-08-31 02:35 UTCGHSA enrichment
  46. 2026-08-30 19:17 UTCEPSS rescore
  47. 2026-08-30 13:24 UTCEG score recompute
  48. 2026-08-30 13:23 UTCGHSA enrichment
  49. 2026-08-30 01:22 UTCEPSS rescore
  50. 2026-08-30 00:09 UTCGHSA enrichment
  51. 2026-08-29 10:55 UTCGHSA enrichment
  52. 2026-08-28 21:41 UTCEG score recompute
  53. 2026-08-28 21:41 UTCGHSA enrichment
  54. 2026-08-28 21:41 UTCEPSS rescore
  55. 2026-08-28 09:43 UTCEG score recompute
  56. 2026-08-28 09:42 UTCGHSA enrichment
  57. 2026-08-27 20:28 UTCEG score recompute
  58. 2026-08-27 20:28 UTCGHSA enrichment
  59. 2026-08-27 20:16 UTCEG score recompute▲ 7.50
  60. 2026-08-27 20:16 UTCGHSA enrichment
  61. 2026-08-27 20:13 UTCMITRE cvelistV5CVSS v3 → 7.5 · severity → HIGH
  62. 2026-08-27 14:25 UTCEPSS rescore
  63. 2026-08-26 20:24 UTCNVD update
  64. 2026-08-26 20:07 UTCEG score recompute
  65. 2026-08-26 20:06 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-26446?
CVE-2026-26446 is a high vulnerability published on August 26, 2026. Stomper 5e2741e is vulnerable to Denial of Service. When a broker sends data to a client whose TCP connection was already closed by the peer, the server process receives SIGPIPE and immediately terminates, resulting in a denial of service. Any unauthenticated client can trigger the crash by closing…
When was CVE-2026-26446 disclosed?
CVE-2026-26446 was first published in the National Vulnerability Database on August 26, 2026, with the most recent update on August 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-26446 actively exploited?
CVE-2026-26446 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 72.1% of all scored CVEs.
What is the CVSS score of CVE-2026-26446?
CVE-2026-26446 has a CVSS v3.1 base score of 7.5 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-26446?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-26446, 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-2026-26446

Explore →

Is Your Infrastructure Affected by CVE-2026-26446?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs