TI-2026-40372 Aliases CVE-2026-55970 GHSA-g7xp-pggm-c7w2

Apache Thrift: C++ heap out-of-bounds read in THeaderTransport::readHeaderFormat()

LOW 38CWE-126Published 2026-07-27 · Updated 2026-07-27

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: —
Confidentiality · integrity · availability: Low · None · Low
Fix status: Partial Red Hat: 3 fixed, 6 without a fix

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and Red Hat.

Summary

Buffer Over-read vulnerability in Apache Thrift C++ bindings. This issue affects Apache Thrift: before 0.24.0. Users are recommended to upgrade to version 0.24.0, which fixes the issue.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00775 56th percentileScored 2026-11-07

Fix Partial Apache Thrift (Apache Software Foundation): 0.24.0Red Hat: 5 advisoriesRed Hat: 3 fixed, 6 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: Yes
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Apache	Apache Thrift	before 0.24.0	0.24.0	Patch available	CNA

Apache Thrift VendorApache Affected before 0.24.0 Fixed in 0.24.0 Patch available CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:apache:thrift::::::::	before 0.24.0	Vulnerable	Apache

cpe:2.3:a:apache:thrift:*:*:*:*:*:*:*:* Versions before 0.24.0 Vulnerable ·Apache

Remediation

Fix · CNA Apache Thrift (Apache Software Foundation) Fixed in 0.24.0

Red Hat 5 advisories

RHSA-2026:59396 Released 2026-08-25 · Red Hat rating Important
RHEL AI 3.3 RPM runtime CVE fix - thrift
- Red Hat Enterprise Linux AI 3.3 for RHEL 9 perl-thrift-1:0.15.0-7.el9ai, python3-thrift-1:0.15.0-7.el9ai, thrift-1:0.15.0-7.el9ai +3
RHSA-2026:59395 Released 2026-08-25 · Red Hat rating Important
RHEL AI 3.4 RPM runtime CVE fix - thrift
- Red Hat Enterprise Linux AI 3.4 for RHEL 9 perl-thrift-1:0.15.0-7.el9ai, python3-thrift-1:0.15.0-7.el9ai, thrift-1:0.15.0-7.el9ai +3
RHSA-2026:52831 Released 2026-08-10 · Red Hat rating Important
RHEL AI 3.3 RPM runtime CVE fix - thrift
- Red Hat Enterprise Linux AI 3.3 for RHEL 9 perl-thrift-1:0.15.0-6.el9ai, python3-thrift-1:0.15.0-6.el9ai, thrift-1:0.15.0-6.el9ai +3

Show 2 more Red Hat advisories

RHSA-2026:52829 Released 2026-08-10 · Red Hat rating Important
RHEL AI 3.4 RPM runtime CVE fix - thrift
- Red Hat Enterprise Linux AI 3.4 for RHEL 9 perl-thrift-1:0.15.0-6.el9ai, python3-thrift-1:0.15.0-6.el9ai, thrift-1:0.15.0-6.el9ai +3
RHSA-2026:49837 Released 2026-08-03 · Red Hat rating Important
Red Hat Hardened Images RPMs bug fix and enhancement update
- Red Hat Hardened Images perl-thrift-0.24.0-0.1.hum1@noarch@public-hummingbird-aarch64-rpms, perl-thrift-0.24.0-0.1.hum1@noarch@public-hummingbird-x86_64-rpms, python3-thrift-0.24.0-0.1.hum1@aarch64 +10

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Advisory · 2026-07-27
Apache Thrift — lists.apache.org/thread/7v3jhgwfbmhx42424phydlnzb109g8b9
15 records Highest priority Priority MEDIUM 10 MEDIUM, 5 LOW
Other records, highest priority first
- TI-2026-40373 Apache Thrift: C++ ZLIB heap buffer overflow (write) in THeaderTransport::untransform()Priority MEDIUM 50
- TI-2026-42227 Apache Thrift: C++ THeaderTransport::readString() info-header length bounds bypassPriority MEDIUM 46
- TI-2026-42014 Apache Thrift: Rust binary protocol non-strict path missing string size limitPriority MEDIUM 46
Show all 15 records → Advisory →

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

Product	Status	Plan or fix
Confidential Compute Attestation	Affected	No fix yet: Fix deferred
Red Hat AI Inference Server	Affected	No fix yet: Fix deferred
Red Hat OpenShift AI (RHOAI)	Affected	No fix yet: Fix deferred
Red Hat OpenShift Container Platform 4	Affected	No fix yet: Fix deferred
Red Hat OpenShift Container Platform 5	Affected	No fix yet: Fix deferred
Red Hat OpenShift Update Service	Affected	No fix yet: Fix deferred
Red Hat Enterprise Linux AI 3.3 for RHEL 9	Fixed	RHSA-2026:52831, RHSA-2026:59396
Red Hat Enterprise Linux AI 3.4 for RHEL 9	Fixed	RHSA-2026:52829, RHSA-2026:59395
Red Hat Hardened Images	Fixed	RHSA-2026:49837

Timeline

2026-10-02 Threatist record created from CVE-2026-55970
2026-10-03 Alias added: GHSA-g7xp-pggm-c7w2
2026-11-06 Fix available: Red Hat Enterprise Linux AI 3.3 for RHEL 9, Red Hat Enterprise Linux AI 3.4 for RHEL 9 · Red Hat
2026-11-06 Fix available: RHSA-2026:59395 · Red Hat
2026-11-06 Fix available: RHSA-2026:52831 · Red Hat
2026-11-06 Fix available: RHSA-2026:52829 · Red Hat
2026-11-06 Fix available: RHSA-2026:59396 · Red Hat

References

Advisory 3

TI-2026-40373 Apache Thrift: C++ ZLIB heap buffer overflow (write) in THeaderTransport::untransform() CVSS 4.0CRITICAL 9.3
TI-2016-04675 Command injection in Apache Thrift CVSS 3.0HIGH 8.8
TI-2026-42227 Apache Thrift: C++ THeaderTransport::readString() info-header length bounds bypass CVSS 4.0HIGH 8.7
TI-2026-42014 Apache Thrift: Rust binary protocol non-strict path missing string size limit CVSS 4.0HIGH 8.7
TI-2026-40371 Integer overflow in Apache Thrift CVSS 4.0HIGH 8.7
TI-2026-40370 Apache Thrift: Node.js quadratic-time DoS in server receive transports CVSS 4.0HIGH 8.7

See all 31 →

Sources

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