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CVE-2026-66331

Apache Thrift: Buffered transport reads are not accounted against MaxMessageSize

6.9 MediumFix available

CVE-2026-66331 is a medium vulnerability (CVSS 6.9) in Apache Software Foundation Thrift, published October 2, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.28%, the 20th percentile. Fixed in thrift 0.25.0-1.

Allocation of Resources Without Limits or Throttling vulnerability in Apache Thrift Delphi bindings buffered transport.

This issue affects Apache Thrift: before 0.25.0.

Users are recommended to upgrade to version 0.25.0, which fixes the issue.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
Low

Exploit likelihood

0.28%Down 0.1 points since Oct 3, 2026
90%50%10%1%

What each source reports

CVE List Score used 6.9

Apache Thrift: Buffered transport reads are not accounted against MaxMessageSize

Allocation of Resources Without Limits or Throttling vulnerability in Apache Thrift Delphi bindings buffered transport.

This issue affects Apache Thrift: before 0.25.0.

Users are recommended to upgrade to version 0.25.0, which fixes the issue.

Record
CVE-2026-66331
CVSS 4.0
6.9 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Weakness
CWE-770
Updated
2026-11-02
EUVDEUVD-2026-91587 6.9

Allocation of Resources Without Limits or Throttling vulnerability in Apache Thrift Delphi bindings buffered transport.

This issue affects Apache Thrift: before 0.25.0.

Users are recommended to upgrade to version 0.25.0, which fixes the issue.

Record
EUVD-2026-91587
CVSS 4.0
6.9 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Updated
2026-11-02
GitHub AdvisoriesGHSA-m343-hcgj-259m 6.9

Allocation of Resources Without Limits or Throttling vulnerability in Apache Thrift Delphi...

Allocation of Resources Without Limits or Throttling vulnerability in Apache Thrift Delphi bindings buffered transport.

This issue affects Apache Thrift: before 0.25.0.

Users are recommended to upgrade to version 0.25.0, which fixes the issue.

Record
GHSA-m343-hcgj-259m
CVSS 4.0
6.9 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Weakness
CWE-770
Updated
2026-11-02
NVD 6.9

Allocation of Resources Without Limits or Throttling vulnerability in Apache Thrift Delphi bindings buffered transport.

This issue affects Apache Thrift: before 0.25.0.

Users are recommended to upgrade to version 0.25.0, which fixes the issue.

Record
CVE-2026-66331
CVSS 4.0
6.9 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Weakness
CWE-770
Updated
2026-11-02
OSVDEBIAN-CVE-2026-66331 6.9

Allocation of Resources Without Limits or Throttling vulnerability in Apache Thrift Delphi bindings buffered transport. This issue affects Apache Thrift: before 0.25.0. Users are recommended to upgrade to version 0.25.0, which fixes the issue.

Record
DEBIAN-CVE-2026-66331
CVSS 4.0
6.9 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Updated
2026-11-02
OSVRHSA-2026:74369 7.5

Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

Record
RHSA-2026:74369
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVUBUNTU-CVE-2026-66331 6.9

Allocation of Resources Without Limits or Throttling vulnerability in Apache Thrift Delphi bindings buffered transport. This issue affects Apache Thrift: before 0.25.0. Users are recommended to upgrade to version 0.25.0, which fixes the issue.

Record
UBUNTU-CVE-2026-66331
CVSS 4.0
6.9 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Updated
2026-11-02
OSVAZL-106578 No score

CVE-2026-66331 affecting package thrift for versions less than 0.25.0-1

Allocation of Resources Without Limits or Throttling vulnerability in Apache Thrift Delphi bindings buffered transport.

This issue affects Apache Thrift: before 0.25.0.

Users are recommended to upgrade to version 0.25.0, which fixes the issue.

Record
AZL-106578
Updated
2026-11-02
OSVBIT-thrift-2026-66331 No score

Apache Thrift: Buffered transport reads are not accounted against MaxMessageSize

Allocation of Resources Without Limits or Throttling vulnerability in Apache Thrift Delphi bindings buffered transport.

This issue affects Apache Thrift: before 0.25.0.

Users are recommended to upgrade to version 0.25.0, which fixes the issue.

Record
BIT-thrift-2026-66331
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
thrift
Azure Linux:3
 before 0.25.0-1
0.25.0-1
thrift
Bitnami
 before 0.25.0
0.25.0
thrift
Debian:12
 All versions, plus listed versions
0.17.0-20.17.0-30.17.0-40.18.1-10.18.1-2
Show 16 moreShow less
0.19.0-10.19.0-20.19.0-2.10.19.0-2.1~exp10.19.0-30.19.0-40.20.0-10.22.0-10.22.0-20.22.0-30.22.0-40.23.0-10.23.0-20.23.0-30.24.0-10.24.0-2
 None known
thrift
Debian:13
 All versions, plus listed versions
0.19.0-40.20.0-10.22.0-10.22.0-20.22.0-3
Show 6 moreShow less
0.22.0-40.23.0-10.23.0-20.23.0-30.24.0-10.24.0-2
 None known
thrift
Debian:14
 All versions, plus listed versions
0.19.0-40.20.0-10.22.0-10.22.0-20.22.0-3
Show 6 moreShow less
0.22.0-40.23.0-10.23.0-20.23.0-30.24.0-10.24.0-2
 None known
perl-thrift
Red Hat:hummingbird:1
 before 0:0.25.0-0.1.hum1
0:0.25.0-0.1.hum1
python3-thrift
Red Hat:hummingbird:1
 before 0:0.25.0-0.1.hum1
0:0.25.0-0.1.hum1
thrift
Red Hat:hummingbird:1
 before 0:0.25.0-0.1.hum1
0:0.25.0-0.1.hum1
thrift-devel
Red Hat:hummingbird:1
 before 0:0.25.0-0.1.hum1
0:0.25.0-0.1.hum1
thrift-glib
Red Hat:hummingbird:1
 before 0:0.25.0-0.1.hum1
0:0.25.0-0.1.hum1
Show 6 moreShow less
Affected packages
PackageAffectedFixed
thrift-qt
Red Hat:hummingbird:1
 before 0:0.25.0-0.1.hum1
0:0.25.0-0.1.hum1
thrift
Ubuntu:20.04:LTS
 All versions, plus listed versions
0.11.0-60.13.0-2build10.13.0-2build2
 None known
thrift
Ubuntu:22.04:LTS
 All versions, plus listed versions
0.13.0-6ubuntu10.13.0-6ubuntu20.13.0-6ubuntu30.13.0-70.16.0-2
 None known
thrift
Ubuntu:24.04:LTS
 All versions, plus listed versions
0.17.0-40.19.0-20.19.0-2build10.19.0-2.1build40.19.0-2.1build5
 None known
thrift
Ubuntu:26.10
 All versions, plus listed versions
0.22.0-3ubuntu10.23.0-30.23.0-3ubuntu1
 None known
thrift
Ubuntu:26.04:LTS
 All versions, plus listed versions
0.19.0-4build10.22.0-30.22.0-3ubuntu1
 None known

History

History
WhenChangedSources
2026-11-02createdCVE List, EUVD, GitHub Advisories, NVD, OSV

References

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