CVE-2026-34481
unknown
CVSS v3
โ
CVSS v4 NEW
โ
VIR risk
โ
Description
Apache Log4j JSON Template Layout: Improper serialization of non-finite floating-point values in JsonTemplateLayout
Predictions
Exploit likelihood
20%
Patch ETA
โ
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or โ if you've already worked around this in production โ publish your fix to the community-verified tier.
โ Propose a mitigation on Community โ Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| debian | forky | fixed | 0 |
| debian | sid | fixed | 0 |
| debian | trixie | fixed | 0 |
| debian | bookworm | fixed | 0 |
| debian | bullseye | fixed | 0 |
| sles | affected | |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| Maven | org.apache.logging.log4j:log4j-layout-template-json | >=2.14.0,<2.25.4 | 2.25.4 |
| Maven | org.apache.logging.log4j:log4j-layout-template-json | >=3.0.0-alpha1,<=3.0.0-beta3 | |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| gcp | | |
References
- https://security-tracker.debian.org/tracker/CVE-2026-34481
- https://nvd.nist.gov/vuln/detail/CVE-2026-34481
- https://github.com/apache/logging-log4j2/pull/4080
- https://github.com/apache/logging-log4j2
- https://lists.apache.org/thread/n34zdv00gbkdbzt2rx9rf5mqz6lhopcv
- https://logging.apache.org/cyclonedx/vdr.xml
- https://logging.apache.org/log4j/2.x/manual/json-template-layout.html
- https://logging.apache.org/security.html#CVE-2026-34481
- http://www.openwall.com/lists/oss-security/2026/04/10/10
- https://www.suse.com/security/cve/CVE-2026-34481.html
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.