CVE-2026-50076 json
Apache Fory: Java ReplaceResolverSerializer deserialization checks bypass
published 5mo ago modified 3mo ago also EUVD-2026-34300 , GHSA-8f39-v287-78jf
- cvss
- 9.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 44%
- public exploits
- 0
- none known
Summary
Deserialization of Untrusted Data in the Java replace-resolve path in Apache Fory fory-core Java SDK before 1.1.0 on Java/JVM platforms allows a remote attacker to bypass class registration, TypeChecker, and DisallowedList checks and invoke classpath-present readResolve/readExternal hooks via crafted Fory serialized data.
Users are recommended to upgrade to version 1.1.0 or later, which fixes this issue.
Patch / fix
- maven org.apache.fory:fory-core 1.1.0
- Apache Software Foundation Apache Fory 1.1.0
Is CVE-2026-50076 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- total
- Assessed
- 5mo ago
Exploit prediction
0.52% chance of exploitation in the next 30 days, higher than 44% of all scored CVEs (FIRST EPSS, 2026-11-11).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N |
| GitHub | 3.1 | 9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N |
| CNA | 3.1 | 9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| maven | org.apache.fory:fory-core | <1.1.0 |
1.1.0 |
Affected products
- Apache Software Foundation Apache Fory
Classification
- Weakness
-
- CWE-502 Deserialization of Untrusted Data
References
-
fory.apache.org
/security
vendor-advisory, web
-
openwall.com
/lists/oss-security/2026/06/04/4
web, mailing-list, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2026-50076
advisory
-
github.com
/apache/fory
package
Sources
- CVE List CVE-2026-50076
- GitHub Advisory GHSA-8f39-v287-78jf
- NVD CVE-2026-50076
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.