Vulnerability · Published Jun 6, 2026 · Assigned by VulDB

CVE-2026-11411iAI Lab PDF AI App chatpdf.pro getExternalCacheDir path traversal

Medium 4.4

In plain English

A medium-severity path traversal in PDF AI App from iAI Lab. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 6% of all known vulnerabilities).

Severity (CVSS 3.1)4.4Medium

Exploit odds (30 days)0.2%top 93.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

A security flaw has been discovered in iAI Lab PDF AI App 4.21.0 on Android. Impacted is the function getExternalCacheDir of the component chatpdf.pro. Performing a manipulation of the argument _display_name results in path traversal. The attack requires a local approach. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

Affected products (as reported)

Vendor	Product	Versions
iAI Lab	PDF AI App	4.21.0

Weakness: CWE-22 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L/E:P/RL:X/RC:R

References

VDB-368968 | iAI Lab PDF AI App chatpdf.pro getExternalCacheDir path traversal vdb-entry, technical-description
VDB-368968 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
CVE-2026-11411 | CVE Analysis and Report third-party-advisory
Submit #818818 | iAI Lab PDF AI: Podcast, Notes, Slides Version 4.21.0 (chatpdf.pro) Path Traversal third-party-advisory
https://github.com/actuator/chatpdf.pro exploit