Is CVE-2026-25855 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-25855 being exploited in the wild.

How severe is CVE-2026-25855?

High severity, with a CVSS score of 8.8, published 8 June 2026.

Which products and versions are affected?

OpenBullet2 0.2.5 through 0.3.2.

Is there a fix for CVE-2026-25855?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-25855 attacked?

It is attacked over the network, in a network appliance.

Am I affected by CVE-2026-25855?

Check whether you run OpenBullet2 at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-25855: OpenBullet2 remote code execution in FileProxySource

CVE-2026-25855 · Severity: high · CVSS 8.8 · Published 2026-06-08

OpenBullet2, a popular automation suite for web testing, contains a security flaw that allows users with login access to take full control of the server. By uploading malicious script files through the proxy management feature, an attacker can execute commands directly on the underlying operating system. This could lead to the theft of sensitive data, complete service disruption, or the server being used as a staging ground for further attacks.

Technologies: OpenBullet2. Vendors: OpenBullet2.

Quick answers

Is CVE-2026-25855 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-25855 being exploited in the wild.
How severe is CVE-2026-25855?: High severity, with a CVSS score of 8.8, published 8 June 2026.
Which products and versions are affected?: OpenBullet2 0.2.5 through 0.3.2.
Is there a fix for CVE-2026-25855?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-25855 attacked?: It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-25855?: Check whether you run OpenBullet2 at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

An OS command injection vulnerability (CWE-78) exists in OpenBullet2 versions 0.2.5 through 0.3.2. The flaw is located in the FileProxySource proxy loading feature, which fails to properly neutralize script files (such as .bat, .ps1, or .sh) uploaded as proxy sources. An authenticated attacker can upload a malicious script, which the server then executes to retrieve proxy lines. This results in arbitrary command execution on the host system with the privileges of the process user. The attack is reachable over the network and requires low-level authentication.

Affected products

OpenBullet2 OpenBullet2 0.2.5 through 0.3.2

Timeline

2026-06-08: disclosed
2026-06-08: advisory

References

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