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.
CVE-2026-57211
MEDIUMPre-NVD 6.56.5
EchelonGraph scoreLOW confidence
This medium-severity CVE scores 6.5 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit-prediction score not yet available (the EPSS model rescores nightly; freshly-published CVEs typically appear within 48 hours). 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: secondary
6.5
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: —CVSS: 6.5Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 6.5
- EG Score
- 6.5(low)
- EPSS
- —
- KEV
- Not listed
Published
July 10, 2026
Last Modified
July 10, 2026
Advisory Details (5)
Auto-updated Jul 10, 2026🔬 Proof of concept available. Patch available. Sources: github_release, github, github_commit, github_pr.
github Patch Available🟡 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-vxq6github_release Patch Available
RabbitMQ 4.2.6
Patch available: rabbitmq/rabbitmq-server v4.2.6
https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.6github_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/15803github_commit
commit 6730797f6a34 (rabbitmq/rabbitmq-server)
Fix landed in rabbitmq/rabbitmq-server commit 6730797f6a34 — awaiting tagged release
https://github.com/rabbitmq/rabbitmq-server/commit/6730797f6a34b4e8308cea60adf1243857e70204github_commit
commit 39c3a8e9c71d (rabbitmq/rabbitmq-server)
Fix landed in rabbitmq/rabbitmq-server commit 39c3a8e9c71d — awaiting tagged release
https://github.com/rabbitmq/rabbitmq-server/commit/39c3a8e9c71da0403d8dfc13f700e60c936e3682Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 3× in last 7d / 3× 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.
- 2026-07-11 18:22 UTCEG score recompute
- 2026-07-10 20:39 UTCEG score recompute
- 2026-07-10 20:37 UTCMITRE cvelistV5first tracked
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Same CWE
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Frequently asked(4)
What is CVE-2026-57211?
CVE-2026-57211 is a medium 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 in the National Vulnerability Database on July 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
What is the CVSS score of CVE-2026-57211?
CVE-2026-57211 has a CVSS v3 base score of 6.5 (NVD). The EG score is currently aggregating — additional source signals are being incorporated as they become available..
How do I remediate CVE-2026-57211?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-57211, 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
Explore the affected products and dependency analysis for CVE-2026-57211
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