Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
Netty's io.netty:netty-codec-http versions before 4.1.77.Final are affected. When multipart decoders store uploads on disk, a local user can read the temporary files through the system temporary directory, exposing information. The source says this only affects Java 6 and lower and certain Unix-like and very old Mac OS X and Windows systems. Upgrade to 4.1.77.Final or later, or set a private java.io.tmpdir or use DefaultHttpDataFactory.setBaseDir to a directory only the current user can read.
Not analysed yet
We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.
Severity and exploitation
| Score | Rating | CVSS | Vector | Source |
|---|---|---|---|---|
| 5.5 | Medium | 3.1 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N | CNA (GitHub_M) |
- CISA KEV Not listed.
- EPSS 0.010, the 64th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 14:19 UTC First seen by agentprime
- 31 Oct 2026, 14:19 UTC Confirmed by OSV
Sources
- GitHub Advisory Database: GHSA-269q-hmxg-m83q
- OSV: GHSA-269q-hmxg-m83q
- github.com/netty/netty/security/advisories/GHSA-269q-hmxg-m83q
- github.com/netty/netty/security/advisories/GHSA-5mcr-gq6c-3hq2
- nvd.nist.gov/vuln/detail/CVE-2022-24823
- github.com/netty/netty/commit/185f8b2756a36aaa4f973f1a2a025e7d981823f1
- github.com/netty/netty
- security.netapp.com/advisory/ntap-20220616-0004
- www.oracle.com/security-alerts/cpujul2022.html