CVE-2026-53916

HIGHPre-NVD 7.57.5—
EchelonGraph scoreHIGH confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-06-30. 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
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 7.5Exploit: NoneExposed: 0

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

Memory Allocation with Excessive Size Value vulnerability in Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Stomp.

An unauthenticated client that opens a STOMP NIO connection can send header bytes that never terminate which makes the broker buffer them without limit, exhausting the JVM heap. This issue affects Apache ActiveMQ: before 5.19.8, from 6.0.0 before 6.2.7; Apache ActiveMQ All: before 5.19.8, from 6.0.0 before 6.2.7; Apache ActiveMQ Stomp: before 5.19.8, from 6.0.0 before 6.2.7.

Users are recommended to upgrade to version 6.2.7 or 5.19.8, which fixes the issue.

CVSS v3
7.5
EG Score
7.5(high)
EG Risk
39(Track)
EG Risk 39/100SSVC: 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%
Exploitation1% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
52.6%
KEV
Not listed

Published

June 30, 2026

Last Modified

July 2, 2026

Advisory Details (2)

Auto-updated Jun 30, 2026
No patch confirmed yet.
generic

oss-security - CVE-2026-53916: Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Stomp: Unbounded header buffer in STOMP NIO codec

http://www.openwall.com/lists/oss-security/2026/06/29/13
generic
https://lists.apache.org/thread/07hjsj88hqgsb7vvg6ttsj56ts9vjs5n

Vendor Advisories for CVE-2026-53916(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 12× 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.

  1. 2026-07-23 03:19 UTCEG score recompute
  2. 2026-07-22 14:08 UTCEPSS rescore
  3. 2026-07-21 15:25 UTCEPSS rescore
  4. 2026-07-20 17:08 UTCEPSS rescore
  5. 2026-07-19 14:31 UTCEPSS rescore
  6. 2026-07-19 14:31 UTCEPSS rescore
  7. 2026-07-19 02:29 UTCEPSS rescore
  8. 2026-07-18 10:04 UTCEPSS rescore
  9. 2026-07-17 05:07 UTCGHSA enrichment
  10. 2026-07-16 17:35 UTCGHSA enrichment
  11. 2026-07-16 17:03 UTCEPSS rescore
  12. 2026-07-16 05:23 UTCGHSA enrichment
  13. 2026-07-15 17:51 UTCGHSA enrichment
  14. 2026-07-15 16:57 UTCEPSS rescore
  15. 2026-07-15 16:57 UTCEPSS rescore
  16. 2026-07-15 06:19 UTCGHSA enrichment
  17. 2026-07-15 02:00 UTCEPSS rescore
  18. 2026-07-15 02:00 UTCEPSS rescore
  19. 2026-07-14 18:47 UTCGHSA enrichment
  20. 2026-07-14 07:13 UTCGHSA enrichment
  21. 2026-07-13 22:31 UTCEPSS rescore
  22. 2026-07-13 19:42 UTCGHSA enrichment
  23. 2026-07-13 08:10 UTCGHSA enrichment
  24. 2026-07-13 06:13 UTCEPSS rescore
  25. 2026-07-13 06:13 UTCEPSS rescore
Show 43 more
  1. 2026-07-12 20:38 UTCGHSA enrichment
  2. 2026-07-12 09:04 UTCGHSA enrichment
  3. 2026-07-12 05:46 UTCEPSS rescore
  4. 2026-07-11 21:32 UTCGHSA enrichment
  5. 2026-07-11 10:00 UTCGHSA enrichment
  6. 2026-07-11 08:27 UTCEPSS rescore
  7. 2026-07-11 08:27 UTCEPSS rescore
  8. 2026-07-10 22:28 UTCGHSA enrichment
  9. 2026-07-10 10:46 UTCGHSA enrichment
  10. 2026-07-09 23:14 UTCGHSA enrichment
  11. 2026-07-09 19:10 UTCEPSS rescore
  12. 2026-07-09 19:10 UTCEPSS rescore
  13. 2026-07-09 11:41 UTCGHSA enrichment
  14. 2026-07-09 00:09 UTCGHSA enrichment
  15. 2026-07-08 15:16 UTCEPSS rescore
  16. 2026-07-08 15:16 UTCEPSS rescore
  17. 2026-07-08 12:32 UTCGHSA enrichment
  18. 2026-07-08 00:55 UTCGHSA enrichment
  19. 2026-07-07 13:46 UTCEPSS rescore
  20. 2026-07-07 13:46 UTCEPSS rescore
  21. 2026-07-07 13:24 UTCGHSA enrichment
  22. 2026-07-07 01:52 UTCGHSA enrichment
  23. 2026-07-06 16:27 UTCEPSS rescore
  24. 2026-07-06 16:27 UTCEPSS rescore
  25. 2026-07-06 14:17 UTCGHSA enrichment
  26. 2026-07-06 02:44 UTCGHSA enrichment
  27. 2026-07-06 02:23 UTCEPSS rescore
  28. 2026-07-06 02:23 UTCEPSS rescore
  29. 2026-07-05 15:12 UTCGHSA enrichment
  30. 2026-07-05 03:40 UTCGHSA enrichment
  31. 2026-07-05 02:31 UTCEPSS rescore
  32. 2026-07-05 02:30 UTCEPSS rescore
  33. 2026-07-04 16:06 UTCGHSA enrichment
  34. 2026-07-04 06:31 UTCEPSS rescore
  35. 2026-07-04 06:31 UTCEPSS rescore
  36. 2026-07-04 04:33 UTCGHSA enrichment
  37. 2026-07-03 16:59 UTCEG score recompute▲ 7.50
  38. 2026-07-03 16:59 UTCGHSA enrichment
  39. 2026-07-01 15:07 UTCEPSS rescore
  40. 2026-06-30 18:32 UTCNVD updateCVSS v3 → 7.5 · severity → HIGH
  41. 2026-06-30 12:32 UTCEG score recompute
  42. 2026-06-30 12:32 UTCGHSA enrichment
  43. 2026-06-30 12:32 UTCNVD updatefirst tracked

Frequently asked(5)

What is CVE-2026-53916?
CVE-2026-53916 is a high vulnerability published on June 30, 2026. Memory Allocation with Excessive Size Value vulnerability in Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Stomp. An unauthenticated client that opens a STOMP NIO connection can send header bytes that never terminate which makes the broker buffer them without limit, exhausting the JVM heap.…
When was CVE-2026-53916 disclosed?
CVE-2026-53916 was first published in the National Vulnerability Database on June 30, 2026, with the most recent update on July 2, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-53916 actively exploited?
CVE-2026-53916 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 52.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-53916?
CVE-2026-53916 has a CVSS v3.1 base score of 7.5 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-53916?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-53916, 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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