CVE-2025-70887 Signify allows a remote attacker to escalate privileges via the signed_data.py and the context.py components
A remote attacker can escalate privileges in the Signify Python library due to flaws in signed_data.py and context.py components.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-70887?
CVE-2025-70887 is a high-severity vulnerability in n/a, published on 25 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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
Weakness: CWE-269
Which versions are affected by CVE-2025-70887?
3 open source packages ship an affected version, including signify. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
signify PyPI | All versions | 0.9.2 |
signify PyPI | All versions | 0.9.2 |
signify PyPI | All versions | 0.9.2 |
Products include Ralphje Signify.
How do I fix CVE-2025-70887?
Upgrade signify to 0.9.2 or later.
Is CVE-2025-70887 being exploited?
There is no known exploitation of CVE-2025-70887 in the wild and no public exploit code.
Sources
Also known as GHSA-p4hh-mq57-gq8x, PYSEC-2026-2278.