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No exploitation reportedFix available

CVE-2025-33042

No exploitation reported by the sources we read.

  • Published2026-02-13
  • Fixed in1.12.1 · 1.11.5
  • WeaknessCWE-94

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Improper Control of Generation of Code ('Code Injection') vulnerability in Apache Avro Java SDK when generating specific records from untrusted Avro schemas. This issue affects Apache Avro Java SDK: all versions through 1.11.4 and version 1.12.0. Users are recommended to upgrade to version 1.12.1 or 1.11.5, which fix the issue.

Timeline

dates in UTC
  1. 2026-02-1312:16CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2025-33042?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2025-33042?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

OSV · NVD
Apache avro
BranchAffectedFixed in
1.12≥ 1.12.0, < 1.12.11.12.1
1.11< 1.11.51.11.5
1.12= 1.12.0no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

  • CVE-2025-33042 Red Hat Product Security2 products fixed · 14 known affected

    org.apache.avro/avro: Apache Avro Java SDK: Code injection on Java generated code

    avro as a component of Red Hat build of Apache Camel 4 for Quarkus 3 · avro as a component of Red Hat build of Apache Camel for Spring Boot 4 · avro as a component of Red Hat build of Apicurio Registry 2 · +11 more

  • RHSA-2026:7109 Red Hat Product Security1 product fixed

    Red Hat Security Advisory: Red Hat build of Quarkus 3.20.6 release and security update

  • RHSA-2026:7380 Red Hat Product Security1 product fixed

    Red Hat Security Advisory: Red Hat build of Quarkus 3.27.3 release and security update

Full record on NVD

Fix

  1. Update Apache avro to 1.12.1 · 1.11.5
  2. Vendor fix Red Hat Product Security RHSA-2026:7109 · 1 productBefore applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
  3. Workaround from the vendor Red Hat Product Security RHSA-2026:7109 · 1,039 productsMitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
  4. No fix available, says the vendor Red Hat Product Security CVE-2025-33042 · 14 productsFix deferred

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub

Sources

  • NVDCVE recordread 2026-10-23
  • CISA-ADPSSVC decisionnone2026-02-13
  • OpenCVESSVC decisionnone—
  • CISA-ADPCVSS 3.17.32026-02-13
  • CNAweakness (CWE)CWE-94read 2026-10-23
  • FIRST EPSSEPSS score0.7 %2026-10-23
  • OSVaffected packages—

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Published
2026-02-13
Last Modified
2026-06-17
NVD status
Analyzed

Frequently asked questions

What is CVE-2025-33042?

Improper Control of Generation of Code ('Code Injection') vulnerability in Apache Avro Java SDK when generating specific records from untrusted Avro schemas. This issue affects Apache Avro Java SDK: all versions through 1.11.4 and version 1.12.0. Users are recommended to upgrade to version 1.12.1 or 1.11.5, which fix the issue.

Is CVE-2025-33042 actively exploited?

Active exploitation of CVE-2025-33042 has not been confirmed. Its EPSS score was 0.7% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2025-33042?

CVE-2025-33042 has a CVSS v3 base score of 7.3 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.

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