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CVE-2026-66054

Apache Thrift: C++ THeaderTransport does not enforce configured maxFrameSize

MEDIUM
6.9
CVSS Score
Published: October 2, 2026 at 12:58 PM UTC
Updated: October 3, 2026 at 04:16 PM UTC
1 product affected across 1 vendorThrift

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Severity
MEDIUM6.9
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

Allocation of Resources Without Limits or Throttling, Improper Handling of Highly Compressed Data (Data Amplification) vulnerability in Apache Thrift C++ bindings. This issue affects Apache Thrift: before 0.25.0. Users are recommended to upgrade to version 0.25.0, which fixes the issue.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Thrift· Apachepypi
60%
v < 0.25.0
Affected range stops below 0.25.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

Vendor Advisory
Source: cverecord
https://lists.apache.org/thread/33otcgbqd27wf6qq810q56znzbomnhg1
Vendor Advisory
Source: cverecord
https://lists.apache.org/thread/7c23sgowkb3ssmolqofqsn8wzsddvf33

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.9MEDIUMapache
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-770CWE-409

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