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Fencer Vulns
high 7.8

CVE-2018-18629 json

An issue was discovered in the Keybase command-line client before 2.8.0-20181023124437 for Linux.

published 2018-12-20 7 y ago modified 2026-06-17 4 mo ago also EUVD-2018-10345

cvss
7.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.5%
EPSS 1.5% chance of exploitation in 30 days, percentile 74%
public exploits
1
Exploit-DB

Summary

An issue was discovered in the Keybase command-line client before 2.8.0-20181023124437 for Linux. An untrusted search path vulnerability in the keybase-redirector application allows a local, unprivileged user on Linux to gain root privileges via a Trojan horse binary.

Patch / fix

  • keybase keybase 2.8.0-20181023124437

Timeline

  1. First public exploit (EDB-46044)
  2. Published

Exploit prediction

1.49% chance of exploitation in the next 30 days, higher than 74% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-46044 Keybase keybase-redirector - '$PATH' Local Privilege Escalation local, 2018-10-22
  • hackerone.com https://hackerone.com/reports/426944 referenced PoC, tagged "exploit" by a source, unverified
  • keybase.io https://keybase.io/docs/secadv/kb002 referenced PoC, tagged "exploit" by a source, unverified
  • blog.mirch.io https://blog.mirch.io/2018/12/21/cve-2018-18629-keybase-linux-privilege-escalation/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 7.8 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.2 AV:L/AC:L/Au:N/C:C/I:C/A:C

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.