CVE-2026-106972EUVD-2026-112133GHSA-HW75-HPGQ-PH8X
Uncontrolled recursion in MessagePack\BufferUnpacker::unpack() in rybakit/msgpack versions prior to 0.11.0 allows attackers to cause a denia
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
The rybakit/msgpack PHP library, which handles MessagePack data encoding and decoding, is affected by this vulnerability. An attacker can send a specially crafted input to the library's unpacking function, causing it to recurse without limit and leading to a denial of service that makes the affected application unresponsive.
Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.
Read the original description
Uncontrolled recursion in MessagePack\BufferUnpacker::unpack() in rybakit/msgpack versions prior to 0.11.0 allows attackers to cause a denial of service through memory exhaustion when an application decodes deeply nested, attacker-controlled MessagePack input.
Timeline
- CVE published
- First seen by cve.now
- Record last updated
Affected versions
No affected packages have been listed by the sources.