CVE-2026-55526 json
PraisonAI: SSRF protection bypass in `spider_tools._host_is_blocked()` via DNS-resolved hostnames (`127.0.0.1.nip.io`)
published 2026-08-25 2 mo ago modified 2026-09-10 1 mo ago also EUVD-2026-65499 , GHSA-x44h-65qv-cw74 , PYSEC-2026-3905
- cvss
- 8.5
- 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 29%
- public exploits
- 0
- none known
Summary
PraisonAI is a multi-agent teams system. Prior to praisonaiagents 1.6.58, spider_tools._host_is_blocked() does not resolve ordinary hostnames before scrape_page fetches them. A hostname such as 127.0.0.1.nip.io passes validation and resolves to loopback, permitting internal HTTP access. The fix uses socket.getaddrinfo and fails closed on DNS errors. This issue is fixed in version 1.6.58.
Patch / fix
- pypi praisonaiagents 1.6.58
- praison praisonai 4.6.58
- praison praisonaiagents 1.6.58
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 mo ago
Exploit prediction
0.36% chance of exploitation in the next 30 days, higher than 29% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N |
| GitHub | 3.1 | 8.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N |
| OSV | 3.1 | 8.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | praisonaiagents | <1.6.58 |
1.6.58 |
Affected products
- MervinPraison PraisonAI
- MervinPraison praisonaiagents
Classification
References
-
github.com
/MervinPraison/PraisonAI/commit/2f9677abb2ea68eab864ee8b6a828fd0141612e1
web
-
github.com
/MervinPraison/PraisonAI/security/advisories/GHSA-x44h-65qv-cw74
web
-
github.com
/MervinPraison/PraisonAI/releases/tag/v4.6.58
web
-
github.com
/MervinPraison/PraisonAI
package
-
pypi.org
/project/praisonaiagents
package
-
github.com
/advisories/GHSA-x44h-65qv-cw74
advisory
-
nvd.nist.gov
/vuln/detail/CVE-2026-55526
advisory
Sources
- CVE List CVE-2026-55526
- GitHub Advisory GHSA-x44h-65qv-cw74
- NVD CVE-2026-55526
- OSV PYSEC-2026-3905
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.