CVE-2026-58023Network attack vector

Heap disclosure via wrong leftover-buffer pointer

Published Jul 27, 2026 · Updated Jul 27, 2026

Out-of-bounds reads in Apache Thrift c_glib before 0.24.0 allow remote attackers to disclose heap data or crash an RPC process. The framed and buffered transport read_slow paths pass a GByteArray structure rather than its data pointer to memcpy when retaining bytes across a frame boundary. A peer controls frame sizing; sufficient leftover data makes the copy overrun the small structure and place adjacent heap contents into the decoded message.

CVSS severity6.9
Medium
EPSS probability0.64%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds reads in Apache Thrift c_glib before 0.24.0 allow remote attackers to disclose heap data or crash an RPC process. The framed and buffered transport read_slow paths pass a GByteArray structure rather than its data pointer to memcpy when retaining bytes across a frame boundary. A peer controls frame sizing; sufficient leftover data makes the copy overrun the small structure and place adjacent heap contents into the decoded message.

The record

CVE
CVE-2026-58023
Published
Jul 27, 2026
Updated
Jul 27, 2026
Vendor
The Apache Software Foundation
Product
Apache Thrift
Classifications
CWE-125
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 27, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 27, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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  1. Affected versionversion=0 <0.24.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

The Apache Software Foundation · Apache Thriftversion=0 <0.24.0

Published CVSS scores

6.9Apache Software FoundationCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-125Out-of-bounds Read

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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