fzf 0.36.0 through 0.74.5 Denial of Service via maskActionContents
fzf 0.36.0 through 0.74.5 contains an inefficient algorithmic complexity vulnerability in maskActionContents that allows local attackers to exhaust the --listen HTTP server through quadratic string concatenation. Attackers can repeatedly send POST bodies of about 1 MB to the unauthenticated localhost port, blocking the single-threaded server for about 30 seconds each time.
CVE-2026-115319
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-115319
fzf
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "junegunn",
"product": "fzf",
"versions": [
{
"status": "affected",
"version": "0.36.0",
"versionType": "semver",
"lessThanOrEqual": "0.74.5"
}
],
"packageURL": "pkg:golang/github.com/junegunn/fzf",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-115319
Source reference:
/cveMetadata/cveId
Publisher severity
low
Source reference: /containers/cna/metrics
- Event
- #50204 · Revision 1
- Added to Heist Feed
- Publisher date