CVE-2026-89407

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.62% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 49.7% of scored records. A rank, not a probability.

NVD base score

7.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

NVD analysis status

Deferred. NVD last modified this record on 2026-09-22.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-09-22 14:53Z1 MO AGO

Last updated

2026-09-22 15:52Z1 MO AGO

Reserved

2026-09-11

Assigning CNA

HeroDevs

Record state

PUBLISHED

Severity

High (CVSS 7.5)

CNA CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weaknesses

• CWE-400Uncontrolled Resource ConsumptionClass
• CWE-1333Inefficient Regular Expression ComplexityBase

Data version

5.2

Document digest

111c6c1f8d328080fdf474c4805090010cf5ec11594e987ebd30292735822c65

• github.comGHSA-p6pp-m3f8-5c89https://github.com/FasterXML/jackson-core/security/advisories/GHSA-p6pp-m3f8-5c89vendor-advisory
• github.comFasterXML/jackson-core#1649https://github.com/FasterXML/jackson-core/issues/1649issue-tracking
• github.comFasterXML/jackson-core#1650https://github.com/FasterXML/jackson-core/pull/1650patch
• github.comFasterXML/jackson-core#1701 (2.18 backport)https://github.com/FasterXML/jackson-core/pull/1701patch