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CVE-2026-119723VulnerabilityPublished

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

Source GCVE Database

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Authoritative record:CVE-2026-119723· High

Not known to be exploited : upgrade to 23c061f4e804a51badd5f85227e65185651253b5 soon.

Data as of 11 Nov 2026, 19:48 UTC

Severity
High

Rated High by Threat Radar's AI analysis · CVSS not yet scored by NVD

Thin evidence

One scorer or none
Patch
Available – fixed in 23c061f4e804a51badd5f85227e65185651253b5

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 11 Nov 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 11 Nov 2026.

What to do

Upgrade HHVM to 23c061f4e804a51badd5f85227e65185651253b5.

Affected software

ProductAffectedFixed in
FacebookHHVMAffected
  • =0
Fixed in
  • 23c061f4e804a51badd5f85227e65185651253b5

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AI-suggested

The vulnerability is fixed in HHVM at commit 23c061f4e804a51badd5f85227e65185651253b5. Users should upgrade to this or a later version to remediate the issue. No other mitigation guidance is provided.

Description

HHVM versions prior to commit 23c061f4e804a51badd5f85227e65185651253b5 contain a vulnerability in request variable parsing. Specifically, when handling query-string and form parameters, HHVM did not verify that appending a nested array succeeded before further processing. This flaw allows a remote, unauthenticated attacker to send crafted GET or POST requests that cause the HHVM server process to crash before application code execution, resulting in denial of service.

References

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