CVE-2026-10649

HIGHPre-NVD 8.68.6—
EchelonGraph scoreHIGH confidence

Score 8.6 from GitHub Security Advisory (severity: HIGH) published 2026-06-16. a secondary CVSS source baseline 8.6; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
8.6
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 8.6Exploit: NoneExposed: 0

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

A flaw was found in Pacemaker. An unauthenticated remote attacker can exploit an integer overflow vulnerability in the remote message decompression process. By sending a specially crafted compressed remote message before authentication, an attacker can cause memory corruption, leading to a denial of service (DoS) in the CIB remote listener. This can result in the affected service crashing.

CVSS v3
8.6
EG Score
8.6(high)
EPSS
35.3%
KEV
Not listed

Published

June 16, 2026

Last Modified

June 30, 2026

Advisory Details (3)

Auto-updated Jun 16, 2026
Patch available. Sources: redhat, github_pr.
github_pr

Fix integer overflows in remote message code

Upstream fix in progress (PR #4128 · clusterLabs/pacemaker, state=open)

https://github.com/clusterLabs/pacemaker/pull/4128
redhat

2462817 – (CVE-2026-10649) CVE-2026-10649 pacemaker: Pacemaker: Denial of Service via integer overflow in remote message decompression

https://bugzilla.redhat.com/show_bug.cgi?id=2462817
redhat Patch Available

cve-details

https://access.redhat.com/security/cve/CVE-2026-10649

Vendor Advisories for CVE-2026-10649(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 32× in last 7d / 99× 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. 2026-07-06 23:13 UTCEG score recompute
  2. 2026-07-06 23:13 UTCGHSA enrichment
  3. 2026-07-06 16:27 UTCEPSS rescore
  4. 2026-07-06 02:23 UTCEPSS rescore
  5. 2026-07-06 01:16 UTCEG score recompute
  6. 2026-07-06 01:16 UTCGHSA enrichment
  7. 2026-07-05 12:03 UTCEG score recompute
  8. 2026-07-05 12:03 UTCGHSA enrichment
  9. 2026-07-05 02:30 UTCEPSS rescore
  10. 2026-07-05 02:30 UTCEPSS rescore
  11. 2026-07-04 22:50 UTCEG score recompute
  12. 2026-07-04 22:50 UTCGHSA enrichment
  13. 2026-07-04 09:38 UTCEG score recompute
  14. 2026-07-04 09:38 UTCGHSA enrichment
  15. 2026-07-04 06:31 UTCEPSS rescore
  16. 2026-07-03 20:24 UTCEG score recompute
  17. 2026-07-03 20:24 UTCGHSA enrichment
  18. 2026-07-03 07:12 UTCEG score recompute
  19. 2026-07-03 07:12 UTCGHSA enrichment
  20. 2026-07-02 17:59 UTCEG score recompute
  21. 2026-07-02 17:59 UTCGHSA enrichment
  22. 2026-07-02 04:45 UTCEG score recompute
  23. 2026-07-02 04:45 UTCGHSA enrichment
  24. 2026-07-01 15:32 UTCEG score recompute
  25. 2026-07-01 15:32 UTCGHSA enrichment
Show 74 more
  1. 2026-07-01 15:06 UTCEPSS rescore
  2. 2026-07-01 15:06 UTCEPSS rescore
  3. 2026-07-01 02:20 UTCEG score recompute
  4. 2026-07-01 02:20 UTCGHSA enrichment
  5. 2026-06-30 23:22 UTCEPSS rescore
  6. 2026-06-30 13:08 UTCEG score recompute
  7. 2026-06-30 13:08 UTCGHSA enrichment
  8. 2026-06-29 23:53 UTCEG score recompute
  9. 2026-06-29 23:53 UTCGHSA enrichment
  10. 2026-06-29 14:06 UTCEPSS rescore
  11. 2026-06-29 10:34 UTCEG score recompute
  12. 2026-06-29 10:34 UTCGHSA enrichment
  13. 2026-06-28 21:21 UTCEG score recompute
  14. 2026-06-28 21:21 UTCGHSA enrichment
  15. 2026-06-28 14:07 UTCEPSS rescore
  16. 2026-06-28 08:08 UTCEG score recompute
  17. 2026-06-28 08:08 UTCGHSA enrichment
  18. 2026-06-28 04:56 UTCEPSS rescore
  19. 2026-06-28 04:56 UTCEPSS rescore
  20. 2026-06-27 18:56 UTCEG score recompute
  21. 2026-06-27 18:56 UTCGHSA enrichment
  22. 2026-06-27 05:44 UTCEG score recompute
  23. 2026-06-27 05:44 UTCGHSA enrichment
  24. 2026-06-27 03:08 UTCEPSS rescore
  25. 2026-06-26 16:32 UTCEG score recompute
  26. 2026-06-26 16:31 UTCGHSA enrichment
  27. 2026-06-26 03:19 UTCEG score recompute
  28. 2026-06-26 03:19 UTCGHSA enrichment
  29. 2026-06-25 14:06 UTCEG score recompute
  30. 2026-06-25 14:06 UTCGHSA enrichment
  31. 2026-06-25 13:49 UTCEPSS rescore
  32. 2026-06-25 00:53 UTCEG score recompute
  33. 2026-06-25 00:53 UTCGHSA enrichment
  34. 2026-06-24 14:05 UTCEPSS rescore
  35. 2026-06-24 11:40 UTCEG score recompute
  36. 2026-06-24 11:40 UTCGHSA enrichment
  37. 2026-06-23 22:28 UTCEG score recompute
  38. 2026-06-23 22:28 UTCGHSA enrichment
  39. 2026-06-23 21:32 UTCEPSS rescore
  40. 2026-06-23 09:14 UTCEG score recompute
  41. 2026-06-23 09:14 UTCGHSA enrichment
  42. 2026-06-22 20:00 UTCEG score recompute
  43. 2026-06-22 19:59 UTCGHSA enrichment
  44. 2026-06-22 14:25 UTCEPSS rescore
  45. 2026-06-22 14:25 UTCEPSS rescore
  46. 2026-06-22 06:33 UTCEG score recompute
  47. 2026-06-22 06:33 UTCGHSA enrichment
  48. 2026-06-21 17:17 UTCEG score recompute
  49. 2026-06-21 17:17 UTCGHSA enrichment
  50. 2026-06-21 14:56 UTCEPSS rescore
  51. 2026-06-21 14:56 UTCEPSS rescore
  52. 2026-06-21 03:54 UTCEG score recompute
  53. 2026-06-21 03:54 UTCGHSA enrichment
  54. 2026-06-21 01:59 UTCEPSS rescore
  55. 2026-06-21 01:59 UTCEPSS rescore
  56. 2026-06-20 14:40 UTCEG score recompute
  57. 2026-06-20 14:39 UTCGHSA enrichment
  58. 2026-06-20 01:26 UTCEG score recompute
  59. 2026-06-20 01:25 UTCGHSA enrichment
  60. 2026-06-19 19:25 UTCEPSS rescore
  61. 2026-06-19 12:03 UTCEG score recompute
  62. 2026-06-19 12:03 UTCGHSA enrichment
  63. 2026-06-18 22:47 UTCEG score recompute
  64. 2026-06-18 22:47 UTCGHSA enrichment
  65. 2026-06-18 17:52 UTCEPSS rescore
  66. 2026-06-18 09:35 UTCEG score recompute
  67. 2026-06-18 09:35 UTCGHSA enrichment
  68. 2026-06-17 20:16 UTCEG score recompute
  69. 2026-06-17 20:16 UTCGHSA enrichment
  70. 2026-06-17 17:53 UTCEPSS rescore
  71. 2026-06-17 07:04 UTCEG score recompute
  72. 2026-06-17 07:04 UTCGHSA enrichment
  73. 2026-06-16 17:49 UTCEG score recompute
  74. 2026-06-16 17:47 UTCNVD updatefirst tracked

Frequently asked(5)

What is CVE-2026-10649?
CVE-2026-10649 is a high vulnerability published on June 16, 2026. A flaw was found in Pacemaker. An unauthenticated remote attacker can exploit an integer overflow vulnerability in the remote message decompression process. By sending a specially crafted compressed remote message before authentication, an attacker can cause memory corruption, leading to a denial…
When was CVE-2026-10649 disclosed?
CVE-2026-10649 was first published in the National Vulnerability Database on June 16, 2026, with the most recent update on June 30, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-10649 actively exploited?
CVE-2026-10649 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 35.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-10649?
CVE-2026-10649 has a CVSS v3 base score of 8.6 (NVD).
How do I remediate CVE-2026-10649?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-10649, 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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