CVE-2026-10649

HIGHPre-NVD 8.68.6—
EchelonGraph scoreMEDIUM confidence

Score 8.6 from GitHub Security Advisory (severity: HIGH) published 2026-06-16. the CNA's CVSS baseline 8.6; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:redhat, epss, ghsa
Trending — Patch released 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: 1%CVSS: 8.6Exploit: NoneExposed: 0

A fix is available — apply it.

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(medium)
EPSS
43.2%
KEV
Not listed

Published

June 16, 2026

Last Modified

July 22, 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(12)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(5)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatpacemaker-0:3.0.1-5.el10_2.12026-07-16redhat
redhatpacemaker-0:2.1.5-9.el9_2.72026-07-16redhat
redhatpacemaker-0:2.1.7-5.5.el9_42026-07-16redhat
redhatpacemaker-0:2.1.7-5.6.el8_102026-07-14redhat
redhatpacemaker-0:2.1.10-3.el9_82026-07-14redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 13× in last 7d / 80× 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.

Showing the most recent 100 of 102 total refreshes for this CVE.

  1. 2026-07-22 14:08 UTCEPSS rescore
  2. 2026-07-21 15:24 UTCEPSS rescore
  3. 2026-07-20 17:08 UTCEPSS rescore
  4. 2026-07-19 14:30 UTCEPSS rescore
  5. 2026-07-19 02:28 UTCEPSS rescore
  6. 2026-07-18 10:04 UTCEPSS rescore
  7. 2026-07-17 04:34 UTCVendor advisory
  8. 2026-07-17 04:34 UTCGHSA enrichment
  9. 2026-07-16 17:02 UTCEPSS rescore
  10. 2026-07-16 12:57 UTCVendor advisory
  11. 2026-07-16 12:57 UTCGHSA enrichment
  12. 2026-07-15 23:08 UTCVendor advisory
  13. 2026-07-15 23:08 UTCGHSA enrichment
  14. 2026-07-15 16:57 UTCEPSS rescore
  15. 2026-07-15 09:53 UTCVendor advisory
  16. 2026-07-15 09:53 UTCGHSA enrichment
  17. 2026-07-15 02:00 UTCEPSS rescore
  18. 2026-07-14 20:29 UTCGHSA enrichment
  19. 2026-07-14 07:11 UTCGHSA enrichment
  20. 2026-07-13 22:30 UTCEPSS rescore
  21. 2026-07-13 17:48 UTCGHSA enrichment
  22. 2026-07-13 06:12 UTCEPSS rescore
  23. 2026-07-13 03:57 UTCGHSA enrichment
  24. 2026-07-12 14:43 UTCGHSA enrichment
  25. 2026-07-12 05:46 UTCEPSS rescore
Show 75 more
  1. 2026-07-12 01:16 UTCGHSA enrichment
  2. 2026-07-11 12:04 UTCGHSA enrichment
  3. 2026-07-11 08:27 UTCEPSS rescore
  4. 2026-07-10 22:50 UTCGHSA enrichment
  5. 2026-07-10 09:02 UTCGHSA enrichment
  6. 2026-07-09 19:48 UTCGHSA enrichment
  7. 2026-07-09 19:10 UTCEPSS rescore
  8. 2026-07-09 04:28 UTCGHSA enrichment
  9. 2026-07-08 15:15 UTCEPSS rescore
  10. 2026-07-08 15:15 UTCEPSS rescore
  11. 2026-07-08 15:07 UTCGHSA enrichment
  12. 2026-07-08 01:53 UTCGHSA enrichment
  13. 2026-07-07 13:46 UTCEPSS rescore
  14. 2026-07-07 12:41 UTCGHSA enrichment
  15. 2026-07-06 23:13 UTCGHSA enrichment
  16. 2026-07-06 16:27 UTCEPSS rescore
  17. 2026-07-06 02:23 UTCEPSS rescore
  18. 2026-07-06 01:16 UTCGHSA enrichment
  19. 2026-07-05 12:03 UTCGHSA enrichment
  20. 2026-07-05 02:30 UTCEPSS rescore
  21. 2026-07-05 02:30 UTCEPSS rescore
  22. 2026-07-04 22:50 UTCGHSA enrichment
  23. 2026-07-04 09:38 UTCGHSA enrichment
  24. 2026-07-04 06:31 UTCEPSS rescore
  25. 2026-07-03 20:24 UTCGHSA enrichment
  26. 2026-07-03 07:12 UTCGHSA enrichment
  27. 2026-07-02 17:59 UTCGHSA enrichment
  28. 2026-07-02 04:45 UTCGHSA enrichment
  29. 2026-07-01 15:32 UTCGHSA enrichment
  30. 2026-07-01 15:06 UTCEPSS rescore
  31. 2026-07-01 15:06 UTCEPSS rescore
  32. 2026-07-01 02:20 UTCGHSA enrichment
  33. 2026-06-30 23:22 UTCEPSS rescore
  34. 2026-06-30 13:08 UTCGHSA enrichment
  35. 2026-06-29 23:53 UTCGHSA enrichment
  36. 2026-06-29 14:06 UTCEPSS rescore
  37. 2026-06-29 10:34 UTCGHSA enrichment
  38. 2026-06-28 21:21 UTCGHSA enrichment
  39. 2026-06-28 14:07 UTCEPSS rescore
  40. 2026-06-28 08:08 UTCGHSA enrichment
  41. 2026-06-28 04:56 UTCEPSS rescore
  42. 2026-06-28 04:56 UTCEPSS rescore
  43. 2026-06-27 18:56 UTCGHSA enrichment
  44. 2026-06-27 05:44 UTCGHSA enrichment
  45. 2026-06-27 03:08 UTCEPSS rescore
  46. 2026-06-26 16:31 UTCGHSA enrichment
  47. 2026-06-26 03:19 UTCGHSA enrichment
  48. 2026-06-25 14:06 UTCGHSA enrichment
  49. 2026-06-25 13:49 UTCEPSS rescore
  50. 2026-06-25 00:53 UTCGHSA enrichment
  51. 2026-06-24 14:05 UTCEPSS rescore
  52. 2026-06-24 11:40 UTCGHSA enrichment
  53. 2026-06-23 22:28 UTCGHSA enrichment
  54. 2026-06-23 21:32 UTCEPSS rescore
  55. 2026-06-23 09:14 UTCGHSA enrichment
  56. 2026-06-22 19:59 UTCGHSA enrichment
  57. 2026-06-22 14:25 UTCEPSS rescore
  58. 2026-06-22 14:25 UTCEPSS rescore
  59. 2026-06-22 06:33 UTCGHSA enrichment
  60. 2026-06-21 17:17 UTCGHSA enrichment
  61. 2026-06-21 14:56 UTCEPSS rescore
  62. 2026-06-21 14:56 UTCEPSS rescore
  63. 2026-06-21 03:54 UTCGHSA enrichment
  64. 2026-06-21 01:59 UTCEPSS rescore
  65. 2026-06-21 01:59 UTCEPSS rescore
  66. 2026-06-20 14:39 UTCGHSA enrichment
  67. 2026-06-20 01:25 UTCGHSA enrichment
  68. 2026-06-19 19:25 UTCEPSS rescore
  69. 2026-06-19 12:03 UTCGHSA enrichment
  70. 2026-06-18 22:47 UTCGHSA enrichment
  71. 2026-06-18 17:52 UTCEPSS rescore
  72. 2026-06-18 09:35 UTCGHSA enrichment
  73. 2026-06-17 20:16 UTCGHSA enrichment
  74. 2026-06-17 17:53 UTCEPSS rescore
  75. 2026-06-17 07:04 UTCGHSA enrichment

Related CVEs(same vendor + same CWE)

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 July 22, 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 43.2% 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 v4.0 base score of 8.6 (CNA self-assessment; NVD's own analysis pending).
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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