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Highest advisory severityHigh 2 vendors · 2 advisories

CVE-2026-43871

Loop with Unreachable Exit Condition ('Infinite Loop') vulnerability in Apache Thrift Python, Go, PHP and Java…

CVE-2026-43871: Loop with Unreachable Exit Condition ('Infinite Loop') vulnerability in Apache Thrift Python, Go, PHP and Java…. Not in the CISA KEV catalog.

Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.

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CVE-2026-43871 key facts

CISA KEV
Not listed (catalog checked )
Highest advisory severity
High
CVSS base score
8.7 (Apache), 7.5 (Red Hat)
Weakness
CWE-835
Fixed releases
  • Apache: 0.24.0
  • Red Hat: 0.24.0
Vendor advisories
2 from Apache, Red Hat
VulniPulse record
Published · Updated

Scores, vectors, weaknesses and fixed releases are quoted from vendor advisories that cover only CVE-2026-43871; bulletin-wide values are not repeated here.

Is CVE-2026-43871 exploited?

No exploitation is reported in the sources VulniPulse tracks: CVE-2026-43871 is not in the CISA KEV catalog (checked ) and no tracked advisory for it reports exploitation. That is not proof the vulnerability cannot be exploited.

How do I fix CVE-2026-43871?

Upgrade to a fixed release named by the vendor:

  • Apache: 0.24.0
  • Red Hat: 0.24.0
  • Users are recommended to upgrade to version 0.24.0, which fixes the issue. (Apache)

Vendor advisory comparison

Apache

1 advisory

Red Hat

1 advisory
  • Advisory severityHigh7.5

    High [CVE-2026-43871] Denial of Service via infinite loop

    CVE-2026-43871Source published Source updated

    Denial of Service via infinite loop. Red Hat rates this important (CVSS 7.5). Weakness: CWE-835.

    Related products — impact not confirmed
    No product details extracted. Check the source bulletin.
    Source-reported affected versions
    • < 0.24.0
    Source-reported fixed versions
    • 0.24.0
    Mitigation guidance
    No mitigation guidance extracted; consult the source.
All Apache advisories

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