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 |
|---|---|---|---|---|
| 7.5 | High | 3.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | CNA (HeroDevs) |
- CISA KEV Not listed.
- EPSS 0.0049, the 42nd percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 14:16 UTC First seen by agentprime
- 31 Oct 2026, 14:16 UTC Confirmed by OSV
Sources
- GitHub Advisory Database: GHSA-cxp5-3px4-pw24
- OSV: GHSA-cxp5-3px4-pw24
- github.com/FasterXML/jackson-databind/security/advisories/GHSA-cxp5-3px4-pw24
- nvd.nist.gov/vuln/detail/CVE-2026-91777
- github.com/FasterXML/jackson-databind/issues/6204
- github.com/FasterXML/jackson-databind/pull/6204
- github.com/FasterXML/jackson-databind/commit/37ad9b81712cbb9fb62c2d2c1813593252a24b67
- github.com/FasterXML/jackson-databind
- github.com/FasterXML/jackson-databind/releases/tag/jackson-databind-2.18.11
- github.com/FasterXML/jackson-databind/releases/tag/jackson-databind-2.21.7
- github.com/FasterXML/jackson-databind/releases/tag/jackson-databind-2.22.3
- github.com/FasterXML/jackson-databind/releases/tag/jackson-databind-3.1.7
- github.com/FasterXML/jackson-databind/releases/tag/jackson-databind-3.2.3