Description
An issue was discovered in the stripTags and unescapeHTML components in Prototype 1.7.3 where an attacker can cause a Regular Expression Denial of Service (ReDOS) through stripping crafted HTML tags.
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 | prototypejs | 1.7.3-1 | — |
| Debian 13 | prototypejs | 1.7.3-1 | — |
| Debian 12 | prototypejs | 1.7.3-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | prototypejs | No fix yet | — |
| Ubuntu 26.04 LTS | prototypejs | No fix yet | — |
| Ubuntu 25.10 | prototypejs | No fix yet | — |
| Ubuntu 24.04 LTS | prototypejs | No fix yet | — |
| Ubuntu 22.04 LTS | prototypejs | No fix yet | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | prototypejs | No fix yet | — |
| Ubuntu 18.04 LTS | prototypejs | No fix yet | — |
| Ubuntu 16.04 LTS | prototypejs | No fix yet | — |