Vulnerability · Published Oct 2, 2026 · Assigned by apache

CVE-2026-91137Apache Thrift: PHP `thrift_protocol` accelerator: zero-byte container elements

High 8.7

In plain English

A high-severity resource allocation without limits in Apache Thrift from Apache Software Foundation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 20% of all known vulnerabilities).

Severity (CVSS 4.0)8.7High

Exploit odds (30 days)0.3%top 79.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Improper validation of specified quantity in input, Allocation of resources without limits or throttling, Excessive Iteration vulnerability in Apache Thrift PHP bindings. This issue affects Apache Thrift: before 0.25.0. Users are recommended to upgrade to version 0.25.0, which fixes the issue.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Debian:12	thrift	no fix listed	DEBIAN-CVE-2026-91137
Debian:13	thrift	no fix listed	DEBIAN-CVE-2026-91137
Debian:14	thrift	no fix listed	DEBIAN-CVE-2026-91137
Ubuntu:22.04:LTS	thrift	no fix listed	UBUNTU-CVE-2026-91137
Ubuntu:24.04:LTS	thrift	no fix listed	UBUNTU-CVE-2026-91137
Ubuntu:26.04:LTS	thrift	no fix listed	UBUNTU-CVE-2026-91137
Ubuntu:26.10	thrift	no fix listed	UBUNTU-CVE-2026-91137

Affected products (as reported)

Vendor	Product	Versions
Apache Software Foundation	Apache Thrift	0 – before 0.25.0

Weakness: CWE-1284, CWE-770, CWE-834 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

References

https://lists.apache.org/thread/33otcgbqd27wf6qq810q56znzbomnhg1 vendor-advisory
https://lists.apache.org/thread/bf12g1b11r4x9x3wsy4mgwfgd0t779h7 vendor-advisory