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MEDIUM severity

GHSA-hwrj-9rr4-24xh

MEDIUM

GHSA-hwrj-9rr4-24xh is a medium-severity (CVSS 5.9) CWE-297 vulnerability in thrift. O3 Security confirms whether GHSA-hwrj-9rr4-24xh is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.

Apache Thrift Python bindings have a Improper Validation of Certificate with Host Mismatch vulnerabilit

Also known asBIT-thrift-2026-66053CVE-2026-66053PYSEC-2026-3927
Published
Jul 27, 2026
Updated
Sep 10, 2026
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Sep 10, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Real-World Exposure

1 pkg affected
🐍thrift

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects PyPI packages — download data is not available via public APIs for these ecosystems.

Description

Improper Validation of Certificate with Host Mismatch vulnerability in Apache Thrift Python bindings.

This issue affects Apache Thrift: before 0.24.0.

Users are recommended to upgrade to version 0.24.0, which fixes the issue.

This replaces CVE-2026-41603

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐍PyPIthriftall versions0.24.0

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for thrift. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.

  2. Fix

    Update thrift to 0.24.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-hwrj-9rr4-24xh is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

  4. How O3 protects you

    O3 pinpoints whether GHSA-hwrj-9rr4-24xh is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Tailored to GHSA-hwrj-9rr4-24xh. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

Improper Validation of Certificate with Host Mismatch vulnerability in Apache Thrift Python bindings. This issue affects Apache Thrift: before 0.24.0. Users are recommended to upgrade to version 0.24.0, which fixes the issue. This replaces CVE-2026-41603
O3 Security · Impact-Aware SCA

Is GHSA-hwrj-9rr4-24xh in your dependencies?

O3 detects GHSA-hwrj-9rr4-24xh across PyPI dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.

GHSA-hwrj-9rr4-24xh: thrift (Medium 5.9) | O3 Security