Security · High impactFan score 23 · Tier C
Type 257 Characters of Anything. You're In.
DEV · By Anas Issath ·
The Brief
- A password bypass affects Alpine Linux and is triggered by a 257-character input.
- Researcher Özgün Kültekin reported the bug to the OpenSSH project on November 4, 2026.
- The article says two design decisions made four years apart in two different projects combined to create the bug.
Why it matters
Developers running OpenSSH on Alpine Linux may be exposed to a password bypass, and the article argues similar bugs may exist in other codebases.
Who’s affected
- Alpine Linux users
- Teams running OpenSSH with password authentication on Alpine
- #security
- #openssh
- #alpine-linux
- #authentication
- #password
How two sensible decisions, made four years apart in two different projects, turned into a password bypass on Alpine Linux. And why the same bug is probably hiding in your code. On November 4, 2026, a researcher named Özgün Kültekin reported a bug to the OpenSSH project. The next…
Timeline
Researcher Özgün Kültekin reports the bug to the OpenSSH project
DEV Community: backend
Type 257 Characters of Anything. You're In.