High severity · published Jul 27, 2026
CVE-2026-55969
Apache Thrift, Apache Thrift, Apache Thrift, Apache Thrift, Apache Thrift, Apache Thrift: integer overflow in TProtocol::checkReadBytesAvailable()
7.5
CVSS
1%
EPSS
No
On KEV
Description
Integer Overflow or Wraparound vulnerability in Apache Thrift C++, c_glib, Go, netstd, Delphi and Haxe bindings.
This issue affects Apache Thrift: before 0.24.0.
Users are recommended to upgrade to version 0.24.0, which fixes the issue.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.0% · higher than 64% 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 0.24.0; before 0.24.0; before 0.24.0; before 0.24.0; before 0.24.0; before 0.24.0 · source: vendor
TH
Thrift · Apache
before 0.24.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-55969
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-55969
Release Notes
https://lists.apache.org/thread/7v3jhgwfbmhx42424phydlnzb109g8b9
Vendor Advisory
https://lists.apache.org/thread/xmkgd107k795hyrg5kf97mny30sgl5bo
Mailing List
http://www.openwall.com/lists/oss-security/2026/07/24/40
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