oclif JIT Plugin Entry child_process.exec os command injection

published 2026-07-22 3 mo ago modified 2026-07-23 3 mo ago also EUVD-2026-47832

cvss: 5.3; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 1.1%; EPSS 1.1% chance of exploitation in 30 days, percentile 65%
public exploits: 0; none known

A vulnerability was detected in oclif up to 4.23.16. Affected by this vulnerability is the function child_process.exec of the component JIT Plugin Entry Handler. Performing a manipulation of the argument jitPlugins results in os command injection. The attack is only possible with local access. The exploit is now public and may be used. The patch is named 939b045725e065baebc4587b8bccfd56731eed3d. To fix this issue, it is recommended to deploy a patch.

Patch / fix

links 2

github.com/oclif/oclif@939b045 commit
github.com/oclif/oclif#2052 pull request

CISA SSVC

Exploitation: Proof of concept is public
Automatable: no
Technical impact: partial
Assessed: 3 mo ago (2026-07-23)

Exploit prediction

1.08% chance of exploitation in the next 30 days, higher than 65% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

github.com https://github.com/oclif/oclif/issues/2051 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	4.0	4.8	CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
CNA	3.1	5.3	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
CNA	3.0	5.3	CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
CNA	2.0	4.3	AV:L/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:OF/RC:C
CNA	4.0	1.9	CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CNA	3.1	5.3	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CNA	2.0	4.3	AV:L/AC:L/Au:S/C:P/I:P/A:P

Affected products

n/a oclif

Classification

Weakness

CWE-78 Improper Neutralization of Special Elements used in an OS Command
CWE-77 Improper Neutralization of Special Elements used in a Command

References

github.com /oclif/oclif/pull/2052
issue-tracking, patch
github.com /oclif/oclif/commit/939b045725e065baebc4587b8bccfd56731eed3d
patch
github.com /oclif/oclif/issues/2051
exploit, issue-tracking
vuldb.com /vuln/382372
vdb-entry, technical-description
vuldb.com /vuln/382372/cti
signature, permissions-required
vuldb.com /cve/CVE-2026-16628
third-party-advisory
vuldb.com /submit/860149
third-party-advisory
github.com /oclif/oclif/
product

Sources

CVE List CVE-2026-16628
NVD CVE-2026-16628

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.

Summary