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CVE-2025-49619
Skyvern has a Jinja runtime leak
Summary
Skyvern has a Jinja runtime leak
AI summary snake-internal / snake-template-v1
A weakness called CVE-2025-49619 was discovered in Skyvern has a Jinja runtime.
Severity is Info. Low severity or not yet rated.
What you should do: update the affected software to the latest version. If unsure, ask your IT team or search the vendor's site for "Skyvern has a Jinja runtime CVE-2025-49619".
CVE-2025-49619 (Skyvern has a Jinja runtime). Severity: Info. Category: CWE-1336.
Response plan:
1. Check the vendor advisory for affected versions and the patched release.
2. If a vulnerable version is running in production, schedule maintenance (urgency from KEV/CVSS).
3. If no patch yet, mitigate via WAF rule, disabling the affected feature, etc.
4. Monitor logs / SIEM for known IOC and PoC signatures of this CVE.
PoCs and fix commits: see the 'References' section, MITRE, and NVD.
❓ What is the problem
A weakness (CVE-2025-49619) in Skyvern has a Jinja runtime. A serious software flaw has been identified.
📍 Affected scope
Target versions of Skyvern has a Jinja runtime (see vendor advisory). If running in production, identify exposure immediately.
🔥 Severity
Severity: Info. Low severity or not yet rated.
🔧 How to fix
Update to the patched release as listed in the vendor advisory. (Typical mitigation pattern for CWE-1336)
🛡️ Workaround
If a patch is not yet available, consider disabling the affected feature, applying WAF rules, blocking via network ACLs, or isolating the vulnerable version.
🔍 Detection
Check version information, scan dependencies via SBOM, and monitor SIEM for IOC and PoC signatures related to this CVE.
Affected packages
PyPI
skyvern
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"0.2.0"}]}]
References
- advisory https://nvd.nist.gov/vuln/detail/CVE-2025-49619
- advisory https://github.com/advisories/GHSA-h92g-3xc3-ww2r
- package https://github.com/Skyvern-AI/skyvern
- package https://pypi.org/project/skyvern
- web https://github.com/Skyvern-AI/skyvern/commit/db856cd8433a204c8b45979c70a4da1e119d949d
- web https://cristibtz.blog/posts/CVE-2025-49619
- web https://cristibtz.github.io/posts/CVE-2025-49619
- web https://www.exploit-db.com/exploits/52335