CVE-2026-24825
Unknown Unknown - Not Provided
Use-After-Free Memory Leak in ydb-platform yajl Module

Publication date: 2026-01-27

Last updated on: 2026-01-27

Assigner: Government Technology Agency of Singapore Cyber Security Group (GovTech CSG)

Description
Missing Release of Memory after Effective Lifetime vulnerability in ydb-platform ydb (contrib/libs/yajl modules). This vulnerability is associated with program files yail_tree.C. This issue affects ydb: through 24.4.4.2.
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Meta Information
Published
2026-01-27
Last Modified
2026-01-27
Generated
2026-06-16
AI Q&A
2026-01-27
EPSS Evaluated
2026-06-15
NVD
CVE-2026-24825
EUVD
EUVD-2026-4806
Affected Vendors & Products
Showing 2 associated CPEs
Vendor Product Version / Range
ydb-platform ydb to 24.4.4.2 (inc)
unknown_vendor yajl 2.1.0
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-401 The product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse.
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Executive Summary

This vulnerability is a Missing Release of Memory after Effective Lifetime issue in the ydb-platform's ydb software, specifically in the contrib/libs/yajl modules and associated with the yail_tree.C file. It causes a memory leak because memory that should be released after use is not properly freed, leading to inefficient memory usage and potential exhaustion over time.

Impact Analysis

The vulnerability can lead to memory leaks in the affected software, which may cause increased memory consumption, degraded performance, and potentially system instability or crashes if the memory is exhausted. This can affect the reliability and availability of applications using the ydb-platform ydb.

Mitigation Strategies

To mitigate this vulnerability, you should apply the security patch that fixes the memory leak in the yajl library, specifically the patch applied to the `yajl_tree_parse()` function as described in the pull request merged on April 26, 2025. Updating to the fixed version of ydb-platform ydb that includes this patch will eliminate the memory leak vulnerability. [1]

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