When parsing request variables such as query-string and form parameters, HHVM did not check that appending a nested
Source GCVE Database
Not known to be exploited : upgrade to 23c061f4e804a51badd5f85227e65185651253b5 soon.
Data as of 11 Nov 2026, 19:48 UTC
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
Disclosed: evidence found.
CVE published 11 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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
| Product | Affected | Fixed in |
|---|---|---|
| FacebookHHVM | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
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.