PraisonAI is a multi-agent teams system. Prior to praisonai 4.6.58, JobSubmitRequest.validate_webhook_url() accepts webhook_url when resolution raises socket.gaierror because the exception path uses except socket.gaierror: pass. JobExecutor._send_webhook() later performs a fresh lookup, allowing DNS changes to direct the request to an internal service. This issue is fixed in version 4.6.58.
CVE-2026-55537
HIGHPre-NVD 7.17.1Elevated
EchelonGraph scoreLOW confidence
This high-severity CVE scores 7.1 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
7.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: —CVSS: 7.1Exploit: Elevated riskExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.1
- EG Score
- 7.1(low)
- EG Risk
- 48(Track)EG Risk 48/100SSVC: 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 computedSeverity71% × 45%Exploitation40% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- —
- EPSS %ILE
- —
- KEV
- Not listed
Published
August 25, 2026
Last Modified
August 25, 2026
Advisory Details (3)
Auto-updated Aug 25, 2026🔬 Proof of concept available. Patch available. Sources: github, github_commit, github_release.
github Patch Available🟡 PoC Available
Webhook SSRF via DNS fail-open in `JobSubmitRequest.validate_webhook_url()` — patch bypass of CVE-2026-40114 (DNS rebinding / TOCTOU) · Advisory · MervinPraison/PraisonAI · GitHub
Affected: v4.5.126 by adding
https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-rg5q-pp8p-f7jmgithub_release Patch Available
PraisonAI v4.6.58
Patch available: MervinPraison/PraisonAI v4.6.58
https://github.com/MervinPraison/PraisonAI/releases/tag/v4.6.58github_commit Patch Available
commit 2f9677abb2ea (MervinPraison/PraisonAI)
Patch available: MervinPraison/PraisonAI v4.6.137 (contains commit 2f9677abb2ea)
https://github.com/MervinPraison/PraisonAI/commit/2f9677abb2ea68eab864ee8b6a828fd0141612e1Vendor Advisories for CVE-2026-55537(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Weakness Classification(3)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 5× in last 7d / 5× 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.
- 2026-08-25 17:25 UTCEG score recompute
- 2026-08-25 16:26 UTCEG score recompute
- 2026-08-25 15:21 UTCEG score recompute
- 2026-08-25 15:15 UTCEG score recompute
- 2026-08-25 15:14 UTCMITRE cvelistV5first tracked
Frequently asked(4)
What is CVE-2026-55537?
CVE-2026-55537 is a high vulnerability published on August 25, 2026. PraisonAI is a multi-agent teams system. Prior to praisonai 4.6.58, JobSubmitRequest.validatewebhookurl() accepts webhookurl when resolution raises socket.gaierror because the exception path uses except socket.gaierror: pass. JobExecutor.send_webhook() later performs a fresh lookup, allowing DNS…
When was CVE-2026-55537 disclosed?
CVE-2026-55537 was first published in the National Vulnerability Database on August 25, 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-2026-55537?
CVE-2026-55537 has a CVSS v3 base score of 7.1 (NVD). The EG score is currently aggregating — additional source signals are being incorporated as they become available..
How do I remediate CVE-2026-55537?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-55537, 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-2026-55537
Is Your Infrastructure Affected by CVE-2026-55537?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.