High severity · published Oct 2, 2026
CVE-2026-94636
Apache Thrift: Python `TZlibTransport` stops enforcing its decompressed-size limit once the limit is exactly used up
8.2
CVSS
0.3%
EPSS
No
On KEV
Description
Improper handling of highly compressed data (data amplification), Function call with incorrectly specified arguments, Improper validation of specified quantity in input vulnerability in Apache Thrift py bindings.
This issue affects Apache Thrift: before 0.25.0.
Users are recommended to upgrade to version 0.25.0, which fixes the issue.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 20% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AT
Apache Thrift · Apache Software Foundation
before 0.25.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-94636
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-94636
vendor-advisory
https://lists.apache.org/thread/33otcgbqd27wf6qq810q56znzbomnhg1
vendor-advisory
https://lists.apache.org/thread/1rpq0d0g6yzjjzl1z27lwmvhzkn6rbrs
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