CVE-2026-57128 json
PraisonAI: Unauthenticated Event Injection via SSE `/publish` Endpoint
published 4mo ago modified last mo. also EUVD-2026-77533 , GHSA-35w5-pcw4-jx94 , PYSEC-2026-3528
- cvss
- 4.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 16%
- public exploits
- 0
- none known
Summary
PraisonAI is a multi-agent teams system. Prior to praisonaiagents 1.6.58, the SSE server in src/praisonai-agents/praisonaiagents/server/server.py does not consult ServerConfig.auth_token before handling /publish, /events, or /info requests. A network client that can reach the server can broadcast arbitrary events to connected clients and obtain server configuration and client-count information. This issue is fixed in praisonaiagents 1.6.58.
Patch / fix
- pypi praisonaiagents 1.6.59
- praison praisonaiagents 1.6.58
Is CVE-2026-57128 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- partial
- Assessed
- last mo.
Exploit prediction
0.25% chance of exploitation in the next 30 days, higher than 16% of all scored CVEs (FIRST EPSS, 2026-11-11).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 4.3 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
| GitHub | 3.1 | 4.3 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
| OSV | 3.1 | 4.3 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | praisonaiagents | <1.6.59 |
1.6.59 |
Affected products
- MervinPraison PraisonAI
Classification
- Weakness
-
- CWE-306 Missing Authentication for Critical Functionality
References
- github.com /MervinPraison/PraisonAI/commit/2f9677abb2ea68eab864ee8b6a828fd0141612e1
-
github.com
/MervinPraison/PraisonAI/security/advisories/GHSA-35w5-pcw4-jx94
web
- github.com /MervinPraison/PraisonAI/releases/tag/v4.6.58
-
github.com
/MervinPraison/PraisonAI
package
-
pypi.org
/project/praisonaiagents
package
-
github.com
/advisories/GHSA-35w5-pcw4-jx94
advisory
-
nvd.nist.gov
/vuln/detail/CVE-2026-57128
advisory
Sources
- CVE List CVE-2026-57128
- GitHub Advisory GHSA-35w5-pcw4-jx94
- NVD CVE-2026-57128
- OSV PYSEC-2026-3528
Fencer Intel 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.