Description
Elvish is a programming language and interactive shell, combined into one package. In versions prior to 0.14.0 Elvish's web UI backend (started by `elvish -web`) hosts an endpoint that allows executing the code sent from the web UI. The backend does not check the origin of requests correctly. As a result, if the user has the web UI backend open and visits a compromised or malicious website, the website can send arbitrary code to the endpoint in localhost. All Elvish releases from 0.14.0 onward no longer include the the web UI, although it is still possible for the user to build a version from source that includes the web UI. The issue can be patched for previous versions by removing the web UI (found in web, pkg/web or pkg/prog/web, depending on the exact version).
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| elves | elvish | < 0.14.0 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | elvish | 0.14.0-1 | — |
| Debian 13 | elvish | 0.14.0-1 | — |
| Debian 12 | elvish | 0.14.0-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | elvish | No fix yet | — |
| Ubuntu 26.04 LTS | elvish | No fix yet | — |
| Ubuntu 25.10 | elvish | No fix yet | — |
| Ubuntu 24.04 LTS | elvish | No fix yet | — |
| Ubuntu 22.04 LTS | elvish | No fix yet | — |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | elvish | No fix yet | — |
| Ubuntu 18.04 LTS | elvish | No fix yet | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Go | github.com/elves/elvish | < 0.14.0 | 0.14.0 | GHSA-fpv6-f8jw-rc3r |