What’s Vulnerable › Vulnerabilities

CVE-2026-61486: Apache Lucy: stack-buffer-overflow in JSON parser error reporter on malformed input

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-05 · updated 2026-10-24
• Weakness: CWE-121

Description

** UNSUPPORTED WHEN ASSIGNED ** Stack-based Buffer Overflow vulnerability in Apache Lucy. This issue affects Apache Lucy: all versions. As this project is retired, we do not plan to release a version that fixes this issue. Users are recommended to find an alternative or restrict access to the instance to trusted users. Lucy is now maintained outside of the ASF at https://github.com/lucysearch . This issue has been fixed in 0.8.0 there. NOTE: This vulnerability only affects products that are no longer supported by the maintainer.

Affected products

• Apache Software Foundation Apache Lucy: all versions

References

• https://lists.apache.org/thread/z88yv1z19ppsd4td4nqtg7q72fvqh01b
• http://www.openwall.com/lists/oss-security/2026/08/05/7

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