CVE-2026-61436 json
PraisonAI before 4.6.78 Missing Webhook Signature Verification
published 2026-07-15 3 mo ago modified 2026-10-24 15 d ago also EUVD-2026-44642 , GHSA-7c92-x8vg-4258 , PYSEC-2026-4252
- cvss
- 8.6
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 33%
- public exploits
- 0
- none known
Summary
PraisonAI before 4.6.78 fails to verify Svix webhook signatures in AgentMail webhook mode, allowing unauthenticated attackers to forge message.received events. Attackers can send crafted JSON payloads to the webhook endpoint to invoke configured agents with arbitrary sender addresses and message content.
Patch / fix
- pypi praisonai 4.6.78
- MervinPraison PraisonAI 4.6.78
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 3 mo ago
Exploit prediction
0.39% chance of exploitation in the next 30 days, higher than 33% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-7c92-x8vg-4258 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 8.8 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N |
| CNA | 3.1 | 8.6 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L |
| GitHub | 3.1 | 8.6 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L |
| CNA | 4.0 | 8.8 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/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 |
| OSV | 3.1 | 8.6 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | praisonai | <4.6.78 |
4.6.78 |
Affected products
- MervinPraison PraisonAI
Classification
References
-
github.com
/MervinPraison/PraisonAI/commit/846568c7a5d8ce9e71e56e4c213f027c04909753
patch, web
-
github.com
/MervinPraison/PraisonAI/commit/2a855c470077c7d2e2479a575f7ef7f548d51c33
patch, web
-
github.com
/MervinPraison/PraisonAI/security/advisories/GHSA-7c92-x8vg-4258
vendor-advisory, exploit, web
-
vulncheck.com
/advisories/praisonai-before-missing-webhook-signature-verification
third-party-advisory, web
-
nvd.nist.gov
/vuln/detail/CVE-2026-61436
advisory
-
nvd.nist.gov
/vuln/detail/CVE-2026-62172
advisory
-
github.com
/MervinPraison/PraisonAI
package
-
pypi.org
/project/praisonai
package
-
github.com
/advisories/GHSA-7c92-x8vg-4258
advisory
Sources
- CVE List CVE-2026-61436
- GitHub Advisory GHSA-7c92-x8vg-4258
- NVD CVE-2026-61436
- OSV PYSEC-2026-4252
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.