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PatchSiren cyber security CVE debrief

CVE-2026-43871 Apache Software Foundation CVE debrief

CVE-2026-43871 is an Infinite Loop vulnerability in Apache Thrift Python, Go, PHP and Java bindings. This issue affects Apache Thrift: before 0.24.0. Users are recommended to upgrade to version 0.24.0, which fixes the issue. The vulnerability has a CVSS score of 8.7 and a severity of HIGH. Affected users should review and update affected systems. The CVE record was published on 2026-07-27T12:16:44.413Z and has not been modified since then. Evidence is limited to CVE and NVD details. Defenders should verify affected Apache Thrift deployments and review vendor guidance.

Vendor
Apache Software Foundation
Product
Apache Thrift
CVSS
HIGH 8.7
CISA KEV
Not listed in stored evidence
Original CVE published
2026-07-27
Original CVE updated
2026-07-27
Advisory published
2026-07-27
Advisory updated
2026-07-27

Who should care

Users of Apache Thrift Python, Go, PHP and Java bindings should be aware of this vulnerability and take steps to upgrade to version 0.24.0. This includes operators, platform administrators, vulnerability management teams, and security teams who need to review and update affected systems.

Technical summary

The CVE-2026-43871 vulnerability is an Infinite Loop vulnerability in Apache Thrift Python, Go, PHP and Java bindings. This issue affects Apache Thrift: before 0.24.0. The vulnerability has a CVSS score of 8.7 and a severity of HIGH. Users of Apache Thrift Python, Go, PHP and Java bindings should be aware of this vulnerability and take steps to upgrade to version 0.24.0. The CVE record was published on 2026-07-27T12:16:44.413Z and has not been modified since then. Evidence is limited to CVE and NVD details. Defenders should verify affected Apache Thrift deployments and review vendor guidance.

Defensive priority

High priority should be given to upgrading to version 0.24.0, which fixes the issue. Review and update affected systems.

Recommended defensive actions

  • Upgrade to version 0.24.0 of Apache Thrift
  • Review and update affected systems
  • Monitor for potential exploitation
  • Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.
  • Review compensating controls for exposed systems while remediation is scheduled and verified.
  • Check relevant monitoring, detection, and logs for exposed assets that need extra review.
  • Track exceptions, retest remediated assets, and close the item only after evidence is documented.

Evidence notes

The CVE record was published on 2026-07-27T12:16:44.413Z and has not been modified since then. The NVD entry is currently being reviewed. Evidence is limited to CVE and NVD details. Defenders should verify affected Apache Thrift deployments and review vendor guidance.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-43871 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-43871

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-43871 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-43871

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.