CVE-2026-91135

Published: October 2nd, 2026
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.
Unknown
CVSS v2:

Status

DocFilters Release Package State Justification Comment
daily zlib (1.3) False Positive The heap overflow is in Apache Thrift’s C++ THeaderTransport, which uses zlib as a transform. Document Filters does not ship or use Apache Thrift.
26.3 zlib (1.3) False Positive The heap overflow is in Apache Thrift’s C++ THeaderTransport, which uses zlib as a transform. Document Filters does not ship or use Apache Thrift.
26.2 zlib (1.3) False Positive The heap overflow is in Apache Thrift’s C++ THeaderTransport, which uses zlib as a transform. Document Filters does not ship or use Apache Thrift.
26.1 zlib (1.3) False Positive The heap overflow is in Apache Thrift’s C++ THeaderTransport, which uses zlib as a transform. Document Filters does not ship or use Apache Thrift.
25.4 zlib (1.3) False Positive The heap overflow is in Apache Thrift’s C++ THeaderTransport, which uses zlib as a transform. Document Filters does not ship or use Apache Thrift.
25.3 zlib (1.3) False Positive The heap overflow is in Apache Thrift’s C++ THeaderTransport, which uses zlib as a transform. Document Filters does not ship or use Apache Thrift.
25.2 zlib (1.3) False Positive The heap overflow is in Apache Thrift’s C++ THeaderTransport, which uses zlib as a transform. Document Filters does not ship or use Apache Thrift.
25.1 zlib (1.3) False Positive The heap overflow is in Apache Thrift’s C++ THeaderTransport, which uses zlib as a transform. Document Filters does not ship or use Apache Thrift.
24.4 zlib (1.3) False Positive The heap overflow is in Apache Thrift’s C++ THeaderTransport, which uses zlib as a transform. Document Filters does not ship or use Apache Thrift.
24.4.0 zlib (1.3) False Positive The heap overflow is in Apache Thrift’s C++ THeaderTransport, which uses zlib as a transform. Document Filters does not ship or use Apache Thrift.
24.3 zlib (1.3) False Positive The heap overflow is in Apache Thrift’s C++ THeaderTransport, which uses zlib as a transform. Document Filters does not ship or use Apache Thrift.
24.2 zlib (1.3) False Positive The heap overflow is in Apache Thrift’s C++ THeaderTransport, which uses zlib as a transform. Document Filters does not ship or use Apache Thrift.
24.1 zlib (1.3) False Positive The heap overflow is in Apache Thrift’s C++ THeaderTransport, which uses zlib as a transform. Document Filters does not ship or use Apache Thrift.
23.3 zlib (1.3) False Positive The heap overflow is in Apache Thrift’s C++ THeaderTransport, which uses zlib as a transform. Document Filters does not ship or use Apache Thrift.
23.2 zlib (1.2.12) False Positive The heap overflow is in Apache Thrift’s C++ THeaderTransport, which uses zlib as a transform. Document Filters does not ship or use Apache Thrift.
23.1 zlib (1.2.12) False Positive The heap overflow is in Apache Thrift’s C++ THeaderTransport, which uses zlib as a transform. Document Filters does not ship or use Apache Thrift.
22.4 zlib (1.2.12) False Positive The heap overflow is in Apache Thrift’s C++ THeaderTransport, which uses zlib as a transform. Document Filters does not ship or use Apache Thrift.
22.3 zlib (1.2.12) False Positive The heap overflow is in Apache Thrift’s C++ THeaderTransport, which uses zlib as a transform. Document Filters does not ship or use Apache Thrift.
22.2 zlib (1.2.12) False Positive The heap overflow is in Apache Thrift’s C++ THeaderTransport, which uses zlib as a transform. Document Filters does not ship or use Apache Thrift.
22.1 zlib (1.2.11) False Positive The heap overflow is in Apache Thrift’s C++ THeaderTransport, which uses zlib as a transform. Document Filters does not ship or use Apache Thrift.
21.11 zlib (1.2.11) False Positive The heap overflow is in Apache Thrift’s C++ THeaderTransport, which uses zlib as a transform. Document Filters does not ship or use Apache Thrift.
21.8 zlib (1.2.11) False Positive The heap overflow is in Apache Thrift’s C++ THeaderTransport, which uses zlib as a transform. Document Filters does not ship or use Apache Thrift.
21.5.0 zlib (1.2.11) False Positive The heap overflow is in Apache Thrift’s C++ THeaderTransport, which uses zlib as a transform. Document Filters does not ship or use Apache Thrift.
21.2.0 zlib (1.2.11) False Positive The heap overflow is in Apache Thrift’s C++ THeaderTransport, which uses zlib as a transform. Document Filters does not ship or use Apache Thrift.
11.4.19.3667 zlib (1.2.11) False Positive The heap overflow is in Apache Thrift’s C++ THeaderTransport, which uses zlib as a transform. Document Filters does not ship or use Apache Thrift.
11.4.18.3599 zlib (1.2.11) False Positive The heap overflow is in Apache Thrift’s C++ THeaderTransport, which uses zlib as a transform. Document Filters does not ship or use Apache Thrift.
11.4.16.3445 zlib (1.2.11) False Positive The heap overflow is in Apache Thrift’s C++ THeaderTransport, which uses zlib as a transform. Document Filters does not ship or use Apache Thrift.
11.4.15.3368 zlib (1.2.11) False Positive The heap overflow is in Apache Thrift’s C++ THeaderTransport, which uses zlib as a transform. Document Filters does not ship or use Apache Thrift.
11.4.14.3263 zlib (1.2.11) False Positive The heap overflow is in Apache Thrift’s C++ THeaderTransport, which uses zlib as a transform. Document Filters does not ship or use Apache Thrift.
11.4.13.3179 zlib (1.2.11) False Positive The heap overflow is in Apache Thrift’s C++ THeaderTransport, which uses zlib as a transform. Document Filters does not ship or use Apache Thrift.
11.4.12.3054 zlib (1.2.11) False Positive The heap overflow is in Apache Thrift’s C++ THeaderTransport, which uses zlib as a transform. Document Filters does not ship or use Apache Thrift.
11.4.11.3040 zlib (1.2.11) False Positive The heap overflow is in Apache Thrift’s C++ THeaderTransport, which uses zlib as a transform. Document Filters does not ship or use Apache Thrift.
11.4.11.2990 zlib (1.2.11) False Positive The heap overflow is in Apache Thrift’s C++ THeaderTransport, which uses zlib as a transform. Document Filters does not ship or use Apache Thrift.
11.4.10.2934 zlib (1.2.11) False Positive The heap overflow is in Apache Thrift’s C++ THeaderTransport, which uses zlib as a transform. Document Filters does not ship or use Apache Thrift.
11.4.9.2878 zlib (1.2.11) False Positive The heap overflow is in Apache Thrift’s C++ THeaderTransport, which uses zlib as a transform. Document Filters does not ship or use Apache Thrift.
11.4.8.2822 zlib (1.2.11) False Positive The heap overflow is in Apache Thrift’s C++ THeaderTransport, which uses zlib as a transform. Document Filters does not ship or use Apache Thrift.

Severity score breakdown

References