CVE-2026-54512
jackson-databind: PolymorphicTypeValidator bypass via generic type parameters allows arbitrary class instantiation
02 Description
jackson-databind: PolymorphicTypeValidator bypass via generic type parameters allows arbitrary class instantiation
03 Exploitation and scoring
- 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.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
- EPSS probability
- 0.94% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 60.6% of scored records. A rank, not a probability.
- NVD base score
- 8.1 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- NVD analysis status
- Analyzed. NVD last modified this record on 2026-10-25.
- Red Hat severity
- Important. 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.
04 Metadata
- Published
- 2026-06-23 20:56Z4 MO AGO
- Last updated
- 2026-06-24 15:22Z4 MO AGO
- Reserved
- 2026-06-15
- Assigning CNA
- GitHub_M
- Record state
- PUBLISHED
- Severity
- High (CVSS 8.1)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- Data version
- 5.2
- Document digest
- 42bc9923f898c8f82d07502b03f65da009aa37f5e29391b32b6662a351e78b08
05 Affected products
06 References
07 Fixed in
AlmaLinux 9
- pki-jackson-annotations Fixed in 2.21-1.el9_8
- pki-jackson-core Fixed in 2.21.4-1.el9_8
- pki-jackson-databind Fixed in 2.21.4-1.el9_8
- pki-jackson-jaxrs-json-provider Fixed in 2.21.4-1.el9_8
- pki-jackson-jaxrs-providers Fixed in 2.21.4-1.el9_8
- pki-jackson-module-jaxb-annotations Fixed in 2.21.4-1.el9_8
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
AlmaLinux 10
- idm-pki-acme Fixed in 11.9.0-4.el10_2.alma.1
- idm-pki-base Fixed in 11.9.0-4.el10_2.alma.1
- idm-pki-ca Fixed in 11.9.0-4.el10_2.alma.1
- idm-pki-java Fixed in 11.9.0-4.el10_2.alma.1
- idm-pki-kra Fixed in 11.9.0-4.el10_2.alma.1
- idm-pki-server Fixed in 11.9.0-4.el10_2.alma.1
- idm-pki-tools Fixed in 11.9.0-4.el10_2.alma.1
- python3-idm-pki Fixed in 11.9.0-4.el10_2.alma.1
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 9
- pki-jackson-annotations Fixed in 2.21-1.el9_8
- pki-jackson-core Fixed in 2.21.4-1.el9_8
- pki-jackson-databind Fixed in 2.21.4-1.el9_8
- pki-jackson-jaxrs-json-provider Fixed in 2.21.4-1.el9_8
- pki-jackson-jaxrs-providers Fixed in 2.21.4-1.el9_8
- pki-jackson-module-jaxb-annotations Fixed in 2.21.4-1.el9_8
Derived from AlmaLinux 9. Partial coverage: only packages taken from AlmaLinux 9 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 10
- idm-pki-acme Fixed in 11.9.0-4.el10_2.alma.1
- idm-pki-base Fixed in 11.9.0-4.el10_2.alma.1
- idm-pki-ca Fixed in 11.9.0-4.el10_2.alma.1
- idm-pki-java Fixed in 11.9.0-4.el10_2.alma.1
- idm-pki-kra Fixed in 11.9.0-4.el10_2.alma.1
- idm-pki-server Fixed in 11.9.0-4.el10_2.alma.1
- idm-pki-tools Fixed in 11.9.0-4.el10_2.alma.1
- python3-idm-pki Fixed in 11.9.0-4.el10_2.alma.1
Derived from AlmaLinux 10. Partial coverage: only packages taken from AlmaLinux 10 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
Debian 12
- jackson-databind No fix yet
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- jackson-databind No fix yet
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- jackson-databind Fixed in 2.18.11-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 20.04 LTS
- jackson-databind No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 22.04 LTS
- jackson-databind No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 24.04 LTS
- jackson-databind No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 25.10
- jackson-databind No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 26.04 LTS
- jackson-databind No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 26.10
- jackson-databind No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 14.04 LTS
- jackson-databind No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 16.04 LTS
- jackson-databind No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.