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VulnerabilityPublished

CVE-2026-119723: Facebook HHVM · Access of Resource Using Incompatible Type

Affects Facebook HHVMSource CVE Database V5

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

Data as of 11 Nov 2026, 17:30 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 Facebook HHVM to 23c061f4e804a51badd5f85227e65185651253b5.

Affected software

ProductAffectedFixed in
FacebookHHVMAffected
  • =0
Fixed in
  • 23c061f4e804a51badd5f85227e65185651253b5

AI-suggested

A fix is available in HHVM at commit 23c061f4e804a51badd5f85227e65185651253b5. Users should upgrade to this version or later to remediate the vulnerability. No other mitigation steps are indicated.

Description

CVE-2026-119723 is a vulnerability in Facebook's HHVM where improper handling of nested arrays in request variables can cause the server process to crash. An unauthenticated remote attacker can exploit this by sending crafted GET or POST requests, resulting in a denial of service. The issue affects HHVM versions prior to commit 23c061f4e804a51badd5f85227e65185651253b5, where the flaw has been fixed.

References

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