CVE-2026-49432

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 — 4 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.

Improper Input Validation vulnerability in Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Stomp.

A remote unauthenticated peer that can reach an exposed STOMP connector can trigger denial-of-service behavior by sending a negative content-length. For the NIO STOMP transport, an attacker can keep streaming body bytes and grow the per-connection command buffer beyond configured limits to cause OOM. For the blocking STOMP protocol, an error will instead force abnormal transport exception handling for the affected connection and closure. 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)
EPSS
53.5%
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-2026-49432: Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Stomp: STOMP negative content-length enables denial of service

http://www.openwall.com/lists/oss-security/2026/06/29/7
generic
https://lists.apache.org/thread/fsjb26605syqr8xks249h8gkp86t55d2

Vendor Advisories for CVE-2026-49432(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 27× in last 7d / 27× 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. 2026-07-07 05:51 UTCEG score recompute
  2. 2026-07-07 05:51 UTCGHSA enrichment
  3. 2026-07-06 18:49 UTCEG score recompute
  4. 2026-07-06 18:49 UTCGHSA enrichment
  5. 2026-07-06 16:27 UTCEPSS rescore
  6. 2026-07-06 07:49 UTCEG score recompute
  7. 2026-07-06 07:49 UTCGHSA enrichment
  8. 2026-07-06 02:23 UTCEPSS rescore
  9. 2026-07-05 20:46 UTCEG score recompute
  10. 2026-07-05 20:46 UTCGHSA enrichment
  11. 2026-07-05 09:49 UTCEG score recompute
  12. 2026-07-05 09:49 UTCGHSA enrichment
  13. 2026-07-05 02:30 UTCEPSS rescore
  14. 2026-07-04 22:48 UTCEG score recompute
  15. 2026-07-04 22:48 UTCGHSA enrichment
  16. 2026-07-04 11:50 UTCEG score recompute
  17. 2026-07-04 11:50 UTCGHSA enrichment
  18. 2026-07-04 06:31 UTCEPSS rescore
  19. 2026-07-04 00:52 UTCEG score recompute
  20. 2026-07-04 00:52 UTCGHSA enrichment
  21. 2026-07-03 13:55 UTCEG score recompute▲ 7.50
  22. 2026-07-03 13:54 UTCGHSA enrichment
  23. 2026-07-01 15:07 UTCEPSS rescore
  24. 2026-06-30 18:32 UTCNVD updateCVSS v3 → 7.5 · severity → HIGH
  25. 2026-06-30 12:33 UTCEG score recompute
Show 2 more
  1. 2026-06-30 12:33 UTCGHSA enrichment
  2. 2026-06-30 12:32 UTCNVD updatefirst tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-49432?
CVE-2026-49432 is a high vulnerability published on June 30, 2026. Improper Input Validation vulnerability in Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Stomp. A remote unauthenticated peer that can reach an exposed STOMP connector can trigger denial-of-service behavior by sending a negative content-length. For the NIO STOMP transport, an attacker can…
When was CVE-2026-49432 disclosed?
CVE-2026-49432 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-2026-49432 actively exploited?
CVE-2026-49432 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 53.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-49432?
CVE-2026-49432 has a CVSS v3.1 base score of 7.5 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-49432?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-49432, 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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