Description
Algorithmic complexity vulnerability in Hiki Wiki 0.6.0 through 0.6.5 and 0.8.0 through 0.8.5 allows remote attackers to cause a denial of service (CPU consumption) by performing a diff between large, crafted pages that trigger the worst case.
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 12 | hiki | 0.8.6-1 | — |
| Debian 3.1 | hiki | 0.6.5-2 | DSA-1119 |
Advisories 1
- DSA-1119 hiki - design flaw Debian Security (DSA / DLA) · Mar 9, 2026
References
- 18785 vdb-entry
- 26970 vdb-entry
- 21150 third-party-advisory
- DSA-1119 vendor-advisory
- ADV-2006-2643 vdb-entry
- JVN#98836916 third-party-advisory
- http://hikiwiki.org/en/advisory20060703.html
- 20741 third-party-advisory
- hiki-diff-dos(27507) vdb-entry