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High, CVSS 7.4amended

Apache Thrift has an issue with Java TSSLTransportFactory hostname verification

CVE-2026-41603GHSA-gf47-qgg5-9g9q

What to do

Vendor fix available. Upgrade each affected package to the fixed version on its release line (thrift 0.23.0; org.apache.thrift:libthrift 0.23.0), redeploy, then verify what is actually installed.

This page has no inventory attached, so it cannot say whether you are affected. A vendor fix is not proof that your deployment is fixed.

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Affected packages

Sources

Severity and exploitation
Exploitation
No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.
CVSS
7.4 · CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
EPSS
No dated EPSS signal available.
Source description

As published by the source; long descriptions are shortened.

Improper Validation of Certificate with Host Mismatch vulnerability in Apache Thrift. This issue affects Apache Thrift: before 0.23.0. Users are recommended to upgrade to version 0.23.0, which fixes the issue.

Dates and revisions
Published by the source
Last modified by the source
Source last checked
  1. Revision 3 · amended ·

    Amended from osv record BIT-thrift-2026-41603

  2. Revision 2 · amended ·

    Amended from osv record GHSA-gf47-qgg5-9g9q

  3. Revision 1 · created ·

    Published from ghsa record GHSA-gf47-qgg5-9g9q

Agent brief

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# Patch Next advisory brief: CVE-2026-41603

Advisory: Apache Thrift has an issue with Java TSSLTransportFactory hostname verification
IDs: CVE-2026-41603, GHSA-gf47-qgg5-9g9q
Record: https://patchnext.com/advisories/cve-2026-41603 (revision 3, source checked 29 Oct 2026, 06:55 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: High (CVSS 7.4)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: thrift 0.23.0; org.apache.thrift:libthrift 0.23.0. A vendor fix does not mean a deployment is fixed.

## Affected components
- Bitnami thrift: affected < 0.23.0; fixed in 0.23.0
- Maven org.apache.thrift:libthrift: affected < 0.23.0; fixed in 0.23.0

## Suggested inspection (read-only)
- Bitnami thrift: check the installed version with your package manager.
- Maven org.apache.thrift:libthrift: check the installed version with your package manager.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on thrift, org.apache.thrift:libthrift.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://github.com/advisories/GHSA-gf47-qgg5-9g9q (GitHub-reviewed advisory GHSA-gf47-qgg5-9g9q lists affected ranges: Maven org.apache.thrift:libthrift >=0 <0.23.0)
- Verified: https://osv.dev/vulnerability/GHSA-gf47-qgg5-9g9q (OSV record GHSA-gf47-qgg5-9g9q lists affected ranges: Maven org.apache.thrift:libthrift >=0 <0.23.0 (fixed))
- Verified: https://osv.dev/vulnerability/BIT-thrift-2026-41603 (OSV record BIT-thrift-2026-41603 lists affected ranges: Bitnami thrift >=0 <0.23.0 (fixed))

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