PraisonAI before 1.6.78 SSRF via Crawl4AI Chromium backend (MervinPraison PraisonAI)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.27 % · percentile 19 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- VulnCheck
- NVD status
- Deferred
Description
PraisonAI versions before 1.6.78 contain a server-side request forgery vulnerability in the Crawl4AI/Chromium backend that allows attackers to bypass SSRF validation by exploiting DNS rebinding and HTTP redirects. Attackers can craft URLs that resolve to internal services after the initial validation check, enabling the headless browser to follow redirects and read internal responses including sensitive canary values.
Weaknesses (CWE)
- CWE-918 — Server-Side Request Forgery
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 4.0 | HIGH 8.4 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N | VulnCheck |
| CVSS 3.1 | HIGH 8.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N | VulnCheck |
| CVSS 4.0 | HIGH 8.4 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X | NVD · disclosure@vulncheck.com (Secondary) |
| CVSS 3.1 | HIGH 8.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N | NVD · disclosure@vulncheck.com (Secondary) |
Advisories
- GHSA-6g59-gm2v-qhvq — PraisonAI: Crawl4AI/Chromium backend is also affected by the `web_crawl` SSRF validation bypass
- PYSEC-2026-4269 — PraisonAI: Crawl4AI/Chromium backend is also affected by the `web_crawl` SSRF validation bypass
European references
- ENISA EUVD · EUVD-2026-43178
- GCVE · GCVE-0-2026-61429
Affected products
| Product | Versions |
|---|---|
| MervinPraison · PraisonAI | affected 0 < 1.6.78 ; unaffected 1.6.78 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |