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CVE-2026-51297 SQLite CVE debrief

CVE-2026-51297 is a use-after-free vulnerability in sqlite 3.41's JSON parsing logic. Remote adversaries can craft malicious JSON payloads to trigger memory free followed by illegal memory access, potentially leading to arbitrary code execution, sensitive information leakage, and service denial. This vulnerability exists in the JSON parsing logic of sqlite 3.41, and its exploitation could result in memory corruption, data leakage, and service disruption. Users of sqlite 3.41, especially those who handle JSON data, should be aware of this vulnerability and assess the risk. Developers and administrators must apply patches or mitigations to prevent potential attacks.

Vendor
SQLite
Product
SQLite 3.41
CVSS
HIGH 8.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-07-27
Original CVE updated
2026-07-27
Advisory published
2026-07-27
Advisory updated
2026-07-27

Who should care

Users of sqlite 3.41, especially those who handle JSON data, should be aware of this vulnerability. Developers and administrators must assess the risk and apply patches or mitigations. This vulnerability is particularly concerning for environments where sqlite 3.41 is used to process untrusted JSON data. Affected users should prioritize patching or mitigating this vulnerability to prevent potential attacks.

Technical summary

The vulnerability exists in the JSON parsing logic of sqlite 3.41. By crafting malicious JSON payloads, remote adversaries can exploit this use-after-free issue, leading to potential memory corruption, arbitrary code execution, data leakage, and service disruption. This vulnerability is particularly concerning for environments where sqlite 3.41 is used to process untrusted JSON data. Affected users should prioritize patching or mitigating this vulnerability to prevent potential attacks.

Defensive priority

High priority should be given to patching or mitigating this vulnerability, especially in environments where sqlite 3.41 is used to process untrusted JSON data.

Recommended defensive actions

  • Apply the official patch or upgrade to a fixed version of sqlite.
  • Implement compensating controls, such as input validation and sanitization.
  • Monitor for suspicious activity and implement logging and auditing.
  • Consider using alternative JSON parsing libraries or modules.
  • Perform thorough inventory checks to identify affected systems.
  • Review and update security policies to address this vulnerability.
  • Conduct regular security audits to detect potential vulnerabilities.

Evidence notes

The CVE record was published on 2026-07-27T16:17:38.933Z and was last modified on 2026-07-27T19:17:16.630Z. The NVD entry is currently in the 'Received' status. Limited details are available about the specific conditions and vectors of this vulnerability. Further investigation and verification are necessary to fully understand the scope and impact of this vulnerability.

Official resources

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-07-27T16:17:38.933Z and has not been modified since then. The NVD entry is currently Received.