Disclosure summary
Heap-based buffer overflow vulnerability in Apache Thrift C++ THeaderTransport. 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. 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 transform buffer. This issue affects Apache Thrift: before 0.25.0. Users are recommended to upgrade to version 0.25.0, which fixes the issue.
Source-reported weakness categories
CWE-122
Source-specific records & product guidance
Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.
Microsoft Security Updates (CVRF) · 2026-Oct
Open original source · Updated Oct 02, 2026
Apache Thrift: C++ `THeaderTransport::transform()` heap buffer overflow (write direction)
Maximum of vendor-reported product scores; products and fixed builds are associations, not a universal affected-version statement.
| Vendor | Product / association | Version / bounds |
|---|---|---|
| Microsoft update guide | azl3 thrift 0.24.0-1 on Azure Linux 3.0 | (MSRC status code 3) |
Vendor remediation references
- Release Notes · product IDs 0-17084
- Vendor guidance · product IDs 0-17084
NIST National Vulnerability Database · NVD-CVE-2026-91135
Open original source · Updated Oct 02, 2026
Only CPE matches marked vulnerable=true are indexed. AND/OR platform conditions must be checked in the original NVD record.
Original records & references
PUBLISHED 2026-10-02T07:17:37-04:00
MODIFIED 2026-10-02T14:17:06-04:00
INGESTED 2026-10-06T11:45:30-04:00