CVE-2025-70974Fastjson before 1.2.48 mishandles autoType because, when an @type key is in a JSON document, and the value of that key is the name of a…
- 10.0CriticalCVSS base score
- 0.75%Exploitation in 30 daysEPSS · top 45% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- YesPublic exploitsa reference or SSVC says so
Description
Fastjson before 1.2.48 mishandles autoType because, when an @type key is in a JSON document, and the value of that key is the name of a Java class, there may be calls to certain public methods of that class. Depending on the behavior of those methods, there may be JNDI injection with an attacker-supplied payload located elsewhere in that JSON document. This was exploited in the wild in 2023 through 2025. NOTE: this issue exists because of an incomplete fix for CVE-2017-18349. Also, a later bypass is covered by CVE-2022-25845.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. CISA's SSVC rates its exploitation: a proof of concept is public.
Timeline
ID reserved
By mitre
Published
- 6 months later
· 6 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| mitreCNA (assigner) | 3.1 | Critical10.0 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H |
| redhat-SADPADP (enrichment) | 3.1 | Critical10.0 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H |
| NVDNVD · Deferred | 3.1 | Critical10.0 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.75% · top 45% of all CVEs (14 Nov 2026)
- CISA SSVC
- Exploitation: poc · Automatable: yes · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 10.0.
Affected products
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- Mavencom.alibaba:fastjsonGHSA-jm7w-5684-pvh8 (opens in a new tab)
References
References10
- https://github.com/alibaba/fastjson/compare/1.2.47...1.2.48 (opens in a new tab)
- https://www.seebug.org/vuldb/ssvid-98020 (opens in a new tab)
- https://www.cnvd.org.cn/flaw/show/CNVD-2019-22238 (opens in a new tab)
- https://www.freebuf.com/vuls/208339.html (opens in a new tab)
- https://github.com/vulhub/vulhub/tree/master/fastjson/1.2.47-rce (opens in a new tab)
- https://www.cloudsek.com/blog/androxgh0st-continues-exploitation-operators-compromise-a-us-university-for-hosting-c2-logger (opens in a new tab)
- https://cert.360.cn/warning/detail?id=7240aeab581c6dc2c9c5350756079955 (opens in a new tab)
- https://access.redhat.com/security/cve/CVE-2025-70974 (opens in a new tab)vdb-entryx_refsource_REDHAT
- RHBZ#2428203 (opens in a new tab)issue-trackingx_refsource_REDHAT
- https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-70974.json (opens in a new tab)x_sadp-csaf-vex
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-1694 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-jm7w-5684-pvh8 (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2025-70974)Record last updated .