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Public proof of concept

CVE-2025-49619

A public proof of concept exists; no exploitation attested.

  • Published2025-06-07
  • WeaknessCWE-1336

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Skyvern through 0.1.85 is vulnerable to server-side template injection (SSTI) in the Prompt field of workflow blocks such as the Navigation v2 Block. Improper sanitization of Jinja2 template input allows authenticated users to inject crafted expressions that are evaluated on the server, leading to blind remote code execution (RCE).

Timeline

dates in UTC
  1. 2025-06-0714:15CVE publishedNVD
  2. 2025-06-15Exploit-DB entryExploit-DB

Versions per branch

OSV
skyvern
BranchAffectedFixed in
0.2≤ 0.2.0no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA1 product

As mitre, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • Skyvernother versions: unknown
    Affected
    • ≤ 0.1.85no fix statedsemver

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2025-06-17

Fix

No fix published by the sources we read yet. NVD record

Detection

read 2026-11-01 01:02 UTC
Nuclei template
none so far
ProjectDiscovery
Exploit-DB
EDB-52335
Exploit-DB
Proof of concept
Metasploit modules
1 moduleexploit/linux/http/skyvern_ssti_cve_2025_49619rank: excellentModule metadata: Metasploit Framework, © Rapid7, Inc., BSD-3-Clause.
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N
Published
2025-06-07
Last Modified
2026-06-17
NVD status
Deferred
GitHub Advisory
GHSA-h92g-3xc3-ww2r

Frequently asked questions

What is CVE-2025-49619?

Skyvern through 0.1.85 is vulnerable to server-side template injection (SSTI) in the Prompt field of workflow blocks such as the Navigation v2 Block. Improper sanitization of Jinja2 template input allows authenticated users to inject crafted expressions that are evaluated on the server, leading to blind remote code execution (RCE).

Is CVE-2025-49619 actively exploited?

A proof-of-concept exploit exists for CVE-2025-49619, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2025-49619?

CVE-2025-49619 has a CVSS v3 base score of 8.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N.

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Sources for this record