Bug 2559638 - CVE-2026-115319 fzf: fzf: Denial of Service via inefficient string concatenation [epel-all]
Summary: CVE-2026-115319 fzf: fzf: Denial of Service via inefficient string concatenat...
Keywords:
Status: NEW
Alias: None
Product: Fedora EPEL
Classification: Fedora
Component: fzf
Version: epel10
Hardware: Unspecified
OS: Unspecified
low
low
Target Milestone: ---
Assignee: Michel Lind
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: {"flaws": ["7d8cb878-24c2-4c30-a984-e...
Depends On:
Blocks: CVE-2026-115319
TreeView+ depends on / blocked
 
Reported: 2026-10-23 12:49 UTC by Matteo Signorini
Modified: 2026-10-23 12:49 UTC (History)
4 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Type: ---
Embargoed:


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Description Matteo Signorini 2026-10-23 12:49:05 UTC
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

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.


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