CVE-2026-109967CWE-476

CVE-2026-109967

High · published October 13, 2026

CVSS v3.1
7.5
EPSS
1%
Percentile
46.0
In the wild
Unconfirmed
What it is

yt-dlp-web-ui through 4.0.0 contains a NULL pointer dereference vulnerability in the Service.Formats JSON-RPC method that allows remote unauthenticated attackers to crash the server. Attackers can send a single request with a url value like --version, causing invalid yt-dlp JSON output and an unrecovered panic that terminates the process.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
8.7 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
EPSS
0.00562 · 46.0th percentile
Weakness
CWE-476 · NULL Pointer Dereference
Published
2026-10-13T18:17Z
References (5)
https://github.com/marcopiovanello/yt-dlp-web-ui · [email protected]https://github.com/marcopiovanello/yt-dlp-web-ui/blob/v4.0.0/server/formats/parser.go · [email protected]https://github.com/marcopiovanello/yt-dlp-web-ui/blob/v4.0.0/server/rpc/service.go · [email protected]https://github.com/vazzzy071-crypto/security-advisories/blob/main/advisories/2026-10-marcopiovanello-yt-dlp-web-ui-rpc-arg-injection.md · [email protected]https://www.vulncheck.com/advisories/yt-dlp-web-ui-through-4.0.0-null-pointer-dereference-dos-via-service-formats · [email protected]
EPSS history
Timeline
  • 15 OCT 03:28Z
    EPSS moved — → 1%
    epss
  • 13 OCT 14:00Z
    yt-dlp-web-ui through 4.0.0 NULL Pointer Dereference DoS via Service.Formats
    cvelistv5
  • 13 OCT 14:00Z
    yt-dlp-web-ui through 4.0.0 NULL Pointer Dereference DoS via Service.Formats
    cvelistv5