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Vulnerabilities

Vulnerability · OSV-2026-666

Heap-use-after-free in insertkey

Published May 2, 2026 · catalog updated Oct 17, 2026 · Heap-use-after-free in insertkey

Open the advisory

Exploitation likelihood is not on this record for OSV-2026-666. A missing EPSS score is not a low risk. Compare Heap-use-after-free in insertkey with the linked advisory before you change production.

Severity
Unknown—
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
Awaiting synchronization with FIRST
Remediation
Not established
Affected products
OSS-Fuzz lua

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=508107730

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • OSS-Fuzz luafrom 46db6980cd77 (github.com/ligurio/lunapark)

How to fix OSV-2026-666

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

Exploitation likelihood is not on this record for OSV-2026-666. A missing EPSS score is not a low risk. Compare Heap-use-after-free in insertkey with the linked advisory before you change production.

Which versions are affected?

Compare what you have installed with from 46db6980cd77 (github.com/ligurio/lunapark). Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS is not on this record yet. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. May 2, 2026 · OpenSSF OSV / OSV Scanner

    Detected

    OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=508107730

  2. Oct 17, 2026 · OpenSSF OSV / OSV Scanner

    Updated

    OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=508107730

Sources

References

Freshness

Last verified in this catalog Oct 17, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.