PatchTheCVECVE-2022-24795: yajl-ruby is a C binding to the YAJL JSON parsing and generation library
CVE-2022-24795 is a medium-severity flaw (CVSS 5.9) affecting yajl-ruby. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
yajl-ruby is a C binding to the YAJL JSON parsing and generation library. The 1.x branch and the 2.x branch of `yajl` contain an integer overflow which leads to subsequent heap memory corruption when dealing with large (~2GB) inputs. The reallocation logic at `yajl_buf.c#L64` may result in the `need` 32bit integer wrapping to 0 when `need` approaches a value of 0x80000000 (i.e. ~2GB of data), which results in a reallocation of buf->alloc into a s
Why this priority
- Public exploit reference
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2022-24795?
yajl-ruby: upgrade to 1.4.2. Exact commands for each OS are on this page.
Is CVE-2022-24795 being exploited?
CVE-2022-24795 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2022-24795 affect?
CVE-2022-24795 affects yajl-ruby. Severity is medium (CVSS 5.9). yajl-ruby is a C binding to the YAJL JSON parsing and generation library. The 1.x branch and the 2.x branch of `yajl` contain an integer overflow which leads to subsequent heap memory corruption when dealing with large (~2GB) inputs. The re
How urgent is CVE-2022-24795?
Priority 53/100. Public exploit reference; Remotely exploitable, no login, no user action