CVE-2026-94445
Malicious user input may lead to RCE in golang.org/x/playground
A malicious txtar could escape the intended execution context and force arbitrary writes to the playground host's trusted filesystem.
Disjointly, one of the three possible paths to invoke go vet on the playground host did not correctly restrict the execution environment. This permitted a Go process to make a read for an environment configuration file rooted in the playground host's $HOME.
Together, a well-crafted go env file and the go vet invocation could lead to remote code execution in the playground host itself.
This does not affect users of go.dev/play directly; however, it may affect independent deployments of golang.org/x/playground.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Malicious user input may lead to RCE in golang.org/x/playground
A malicious txtar could escape the intended execution context and force arbitrary writes to the playground host's trusted filesystem.
Disjointly, one of the three possible paths to invoke go vet on the playground host did not correctly restrict the execution environment. This permitted a Go process to make a read for an environment configuration file rooted in the playground host's $HOME.
Together, a well-crafted go env file and the go vet invocation could lead to remote code execution in the playground host itself.
This does not affect users of go.dev/play directly; however, it may affect independent deployments of golang.org/x/playground.
- Record
CVE-2026-94445- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-20
- Updated
- 2026-11-02
EUVDEUVD-2026-87201
A malicious txtar could escape the intended execution context and force arbitrary writes to the playground host's trusted filesystem.
Disjointly, one of the three possible paths to invoke go vet on the playground host did not correctly restrict the execution environment. This permitted a Go process to make a read for an environment configuration file rooted in the playground host's $HOME.
Together, a well-crafted go env file and the go vet invocation could lead to remote code execution in the playground host itself.
This does not affect users of go.dev/play directly; however, it may affect independent deployments of golang.org/x/playground.
- Record
EUVD-2026-87201- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-f83q-fx9f-w4gg
A malicious txtar could escape the intended execution context and force arbitrary writes to the...
A malicious txtar could escape the intended execution context and force arbitrary writes to the playground host's trusted filesystem.
Disjointly, one of the three possible paths to invoke go vet on the playground host did not correctly restrict the execution environment. This permitted a Go process to make a read for an environment configuration file rooted in the playground host's $HOME.
Together, a well-crafted go env file and the go vet invocation could lead to remote code execution in the playground host itself.
This does not affect users of go.dev/play directly; however, it may affect independent deployments of golang.org/x/playground.
- Record
GHSA-f83q-fx9f-w4gg- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-20
- Updated
- 2026-11-02
NVD
A malicious txtar could escape the intended execution context and force arbitrary writes to the playground host's trusted filesystem.
Disjointly, one of the three possible paths to invoke go vet on the playground host did not correctly restrict the execution environment. This permitted a Go process to make a read for an environment configuration file rooted in the playground host's $HOME.
Together, a well-crafted go env file and the go vet invocation could lead to remote code execution in the playground host itself.
This does not affect users of go.dev/play directly; however, it may affect independent deployments of golang.org/x/playground.
- Record
CVE-2026-94445- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-20
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-94445 is a high vulnerability (CVSS 8.8) in Golang.org/x/playground, published September 25, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.36%, the 30th percentile. No source names a fixed version.