CVE-2026-56049

HIGHPre-NVD 8.58.5—
EchelonGraph scoreMEDIUM confidence

Score 8.5 from GitHub Security Advisory (severity: HIGH) published 2026-06-25. the CNA's CVSS baseline 8.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:github_m, epss, ghsa
Trending — 3 sources updated this week
8.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 8.5Exploit: None knownExposed: 0

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

Contributor Remote Code Execution (RCE) in Post Snippets <= 4.0.19 versions.

Contributor Remote Code Execution (RCE) in Post Snippets <= 4.0.19 versions.

CVSS v3
8.5
EG Score
8.5(medium)
EG Risk
43(Track)
EG Risk 43/100SSVC: 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
Severity85% × 45%
Exploitation1% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
45%
KEV
Not listed

Published

June 25, 2026

Last Modified

June 25, 2026

Vendor Advisories for CVE-2026-56049(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 11× in last 7d / 97× 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 219 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-56049?
CVE-2026-56049 is a high vulnerability published on June 25, 2026. Contributor Remote Code Execution (RCE) in Post Snippets <= 4.0.19 versions. Contributor Remote Code Execution (RCE) in Post Snippets <= 4.0.19 versions.
When was CVE-2026-56049 disclosed?
CVE-2026-56049 was first published in the National Vulnerability Database on June 25, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-56049 actively exploited?
CVE-2026-56049 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 54.5% of all scored CVEs.
What is the CVSS score of CVE-2026-56049?
CVE-2026-56049 has a CVSS v4.0 base score of 8.5 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-56049?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-56049, 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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