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Fencer Intel
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CVE-2026-119723 json

When parsing request variables such as query-string and form parameters, HHVM did not check that appending a nested array succeeded before…

published 17h ago modified 17h ago also EUVD-2026-123609

cvss
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not scored
cisa kev
Not listed
not in CISA's catalog
epss
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no EPSS score yet
public exploits
0
none known

Summary

When parsing request variables such as query-string and form parameters, HHVM did not check that appending a nested array succeeded before descending into it. A remote, unauthenticated attacker could send a GET or POST request which would crash the HHVM server process before any application code runs, leading to denial of service. This issue affected HHVM prior to 23c061f4e804a51badd5f85227e65185651253b5.

Patch / fix

Is CVE-2026-119723 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Affected products

  • Facebook HHVM

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.