CVE-2026-57211

CRITICALNVD 10.010.0—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 10.0 under NVD CVSS v3. EPSS exploit probability: 0.6% (48th percentile of EPSS-scored CVEs). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Elevated
10.0EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.6%CVSS: 10.0Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

RabbitMQ is a messaging and streaming broker. Prior to 4.1.11 and 4.2.6 on Windows, the RabbitMQ management plugin static file handler rabbit_mgmt_wm_static can pass URL-encoded backslashes to erl_prim_loader:read_file_info before path validation when multiple management extension plugins are enabled, causing outbound DNS and SMB requests to attacker-controlled UNC paths. This issue is fixed in versions 4.1.11 and 4.2.6.

CVSS v3
10.0
EG Score
10.0CRITICALmedium confidence
EG Risk
61
EG Risk 61/100CISA SSVC

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
Severity100% × 45%
Exploitation40% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.6%
EPSS %ILE
48th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

July 10, 2026

Last Modified

July 13, 2026

Advisory Details (5)

Auto-updated Oct 6, 2026
🔬 Proof of concept available. Patch available. Sources: github_commit, github_pr, github_release, github.
githubMentions a patch (unverified)🟡 PoC Available

UNC SSRF affecting RabbitMQ management UI on Windows · Advisory · rabbitmq/rabbitmq-server · GitHub

https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-7v84-m3g5-vxq6
github_release Patch Available

RabbitMQ 4.2.6

Patch available: rabbitmq/rabbitmq-server v4.2.6

https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.6
github_pr

Management plugin: apply path filtering earlier

Fix merged in rabbitmq/rabbitmq-server PR #15803 on 2026-03-23 — awaiting tagged release

https://github.com/rabbitmq/rabbitmq-server/pull/15803
github_commit

commit 6730797f6a34 (rabbitmq/rabbitmq-server)

Fix landed in rabbitmq/rabbitmq-server commit 6730797f6a34 — awaiting tagged release

https://github.com/rabbitmq/rabbitmq-server/commit/6730797f6a34b4e8308cea60adf1243857e70204
github_commit

commit 39c3a8e9c71d (rabbitmq/rabbitmq-server)

Fix landed in rabbitmq/rabbitmq-server commit 39c3a8e9c71d — awaiting tagged release

https://github.com/rabbitmq/rabbitmq-server/commit/39c3a8e9c71da0403d8dfc13f700e60c936e3682

Vendor Advisories for CVE-2026-57211(3)

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

Patch Availability(2)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatrabbitmq-server4-2-main-4.2.8-1.hum12026-07-06redhat
redhatrabbitmq-server4-3-main-4.3.2-1.hum12026-07-06redhat

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(2)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 47× 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 332 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-57211?
CVE-2026-57211 is a critical vulnerability published on July 10, 2026. RabbitMQ is a messaging and streaming broker. Prior to 4.1.11 and 4.2.6 on Windows, the RabbitMQ management plugin static file handler rabbitmgmtwmstatic can pass URL-encoded backslashes to erlprimloader:readfile_info before path validation when multiple management extension plugins are enabled,…
When was CVE-2026-57211 disclosed?
CVE-2026-57211 was first published on July 10, 2026, with the most recent update on July 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-57211 actively exploited?
CVE-2026-57211 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.6% probability of exploitation in the next 30 days (48th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-57211?
CVE-2026-57211 has a CVSS v3 base score of 10.0 (NVD).
How do I remediate CVE-2026-57211?
A fix for CVE-2026-57211 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-57211 are linked in the Vendor Advisories panel on this page.

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