CVE-2026-91135
NVD: Heap-based buffer overflow vulnerability in Apache Thrift C++ THeaderTransport. NVD: When an application enables the ZLIB transform for the frames it sends, THeaderTransport::transform() copies the compressed frame into the write buffer without making sure it fits. NVD: Data that does not compress, such as content a remote peer supplied, grows under compression, so the copy writes past the end of the heap buffer by an amount that grows with the size of the frame, and for large frames it also reads past the end of the...
9.2 Severity
CRITICAL EPSS
0.0046 (38) KEV
-
Source-published summary
NVD: Heap-based buffer overflow vulnerability in Apache Thrift C++ THeaderTransport. NVD: When an application enables the ZLIB transform for the frames it sends, THeaderTransport::transform() copies the compressed frame into the write buffer without making sure it fits. NVD: Data that does not compress, such as content a remote peer supplied, grows under compression, so the copy writes past the end of the heap buffer by an amount that grows with the size of the frame, and for large frames it also reads past the end of the...
Possible impact
Source describes memory safety review. Possible impact: The affected component has memory-safety risk that may lead to crash, privilege, or code-execution impact depending on exposure.
Affected context
Affected product or version requires source confirmation.
Remediation / advisory
Patch confirmed by source text; fixed version context: 0.25.0.
Why it matters
Source describes memory safety review. Possible impact: The affected component has memory-safety risk that may lead to crash, privilege, or code-execution impact depending on exposure.; CVSS 9.2 (CRITICAL); EPSS percentile 38; not listed in KEV; Patch confirmed by source text; fixed version context: 0.25.0; sources: NVD.
What to verify
Confirm affected product/version, vendor advisory, patch or mitigation, and exposure.
Exposure hint
exposure unknown
Impact tags
Urgency reasons
Source-derived note
Summary derived from NVD description; unsafe procedural detail is not shown.
Redaction metadata
- source summary used
- True
- fallback summary used
- False
- unsafe procedural detail present
- false
- raw source displayed
- false
- public summary redacted
- true
Remediation handoff
Public-safe static handoff for human/Codex remediation planning. Scan, patch, external execution, and auto remediation are disabled.
Safety note
This radar shows source-published defensive context only. Exploit procedures, exploit strings, scanner commands, and auto-remediation are not provided.