CVE-2025-70887 json
Signify allows a remote attacker to escalate privileges via the signed_data.py and the context.py components
published 2026-03-25 7 mo ago modified 2026-07-13 3 mo ago also GHSA-p4hh-mq57-gq8x , PYSEC-2026-2278 , EUVD-2025-209004
- cvss
- 8.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 28%
- public exploits
- 0
- none known
Summary
An issue in ralphje Signify before v.0.9.2 allows a remote attacker to escalate privileges via the signed_data.py and the context.py components
Patch / fix
- pypi signify 0.9.2
- ralphje signify 0.9.2
- github.com/ralphje/signify@64f21c0 commit
- github.com/mtrojnar/osslsigncode#477 pull request
- github.com/mtrojnar/osslsigncode/releases/tag/2.11 release
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 7 mo ago
Exploit prediction
0.35% chance of exploitation in the next 30 days, higher than 28% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| CNA | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| OSV | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | signify | <0.9.2 |
0.9.2 |
Classification
- Weakness
-
- CWE-269 Improper Privilege Management
References
-
github.com
/ralphje/signify/commit/64f21c0cc06cea0536370686ca3ba7a01e4adaa8
web, patch
-
github.com
/mtrojnar/osslsigncode/pull/477
web, not-applicable, patch
-
github.com
/ralphje/signify/issues/60
web, issue-tracking, report
-
github.com
/mtrojnar/osslsigncode/issues/475
web, not-applicable, report
-
github.com
/mtrojnar/osslsigncode/releases/tag/2.11
web, not-applicable
-
nvd.nist.gov
/vuln/detail/CVE-2025-70887
advisory
-
github.com
/ralphje/signify
package
-
github.com
/advisories/GHSA-p4hh-mq57-gq8x
advisory
Sources
- CVE List CVE-2025-70887
- GitHub Advisory GHSA-p4hh-mq57-gq8x
- NVD CVE-2025-70887
- OSV PYSEC-2026-2278
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