Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
PraisonAI (PyPI package praisonai) versions before 4.6.78 are affected. When the operator has set PRAISONAI_CALL_AUTH=disabled and the API is reachable over the network, an unauthenticated remote caller can send a spoofed localhost Host header to bypass the intended localhost-only check, then list and invoke registered agents. Upgrade to praisonai 4.6.78 or later. Without the opt-out enabled, the report describes no exposure, and the source gives few details on whether other configurations are affected.
Not analysed yet
We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.
Severity and exploitation
| Score | Rating | CVSS | Vector | Source |
|---|---|---|---|---|
| 8.8 | High | 4.0 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N | CNA (VulnCheck) |
- CISA KEV Not listed.
- EPSS 0.0049, the 42nd percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 14:08 UTC First seen by agentprime
- 31 Oct 2026, 14:08 UTC Confirmed by OSV
Sources
- GitHub Advisory Database: GHSA-2gpf-2492-q9jh
- OSV: GHSA-2gpf-2492-q9jh
- github.com/MervinPraison/PraisonAI/security/advisories/GHSA-2gpf-2492-q9jh
- nvd.nist.gov/vuln/detail/CVE-2026-61435
- nvd.nist.gov/vuln/detail/CVE-2026-62174
- github.com/MervinPraison/PraisonAI/commit/2a855c470077c7d2e2479a575f7ef7f548d51c33
- github.com/MervinPraison/PraisonAI/commit/846568c7a5d8ce9e71e56e4c213f027c04909753
- github.com/MervinPraison/PraisonAI
- www.vulncheck.com/advisories/praisonai-before-authentication-bypass-via-host-header-spoofing