Medium severity6.5NVD Advisory· Published Apr 9, 2026· Updated Apr 17, 2026
CVE-2026-40148
CVE-2026-40148
Description
PraisonAI is a multi-agent teams system. Prior to 4.5.128, the _safe_extractall() function in PraisonAI's recipe registry validates archive members against path traversal attacks but performs no checks on individual member sizes, cumulative extracted size, or member count before calling tar.extractall(). An attacker can publish a malicious recipe bundle containing highly compressible data (e.g., 10GB of zeros compressing to ~10MB) that exhausts the victim's disk when pulled via LocalRegistry.pull() or HttpRegistry.pull(). This vulnerability is fixed in 4.5.128.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
PraisonAIPyPI | < 4.5.128 | 4.5.128 |
Affected products
1Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
4- github.com/MervinPraison/PraisonAI/security/advisories/GHSA-f2h6-7xfr-xm8wnvdExploitVendor AdvisoryWEB
- github.com/advisories/GHSA-f2h6-7xfr-xm8wghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-40148ghsaADVISORY
- github.com/MervinPraison/PraisonAI/releases/tag/v4.5.128ghsaWEB
News mentions
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