Pleaser privilege escalation vulnerability

published 2023-04-29 3 y ago modified 2026-06-17 4 mo ago also GHSA-cgf8-h3fp-h956 , RUSTSEC-2023-0066 , EUVD-2023-2716

cvss: 7.8; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.3%; EPSS 0.3% chance of exploitation in 30 days, percentile 23%
public exploits: 0; none known

please (aka pleaser) through 0.5.4 allows privilege escalation through the TIOCSTI and/or TIOCLINUX ioctl. (If both TIOCSTI and TIOCLINUX are disabled, this cannot be exploited.)

Patch / fix

links 2

github.com/rustsec/advisory-db#1798 patch
gitlab.com/edneville/please#69 pull request

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2023-46277 updated 2026-06-26 cvss 4.6

rust-pleaser: privilege escalation using ioctls TIOCSTI and TIOCLINUX

Red Hat All currently supported Red Hat products
not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation: Proof of concept is public
Automatable: no
Technical impact: total
Assessed: 2 y ago (2024-09-12)

Exploit prediction

0.31% chance of exploitation in the next 30 days, higher than 23% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

gitlab.com https://gitlab.com/edneville/please/-/issues/13 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.1	7.8	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
GitHub	3.1	7.8	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
OSV	3.1	4.6	CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Affected packages

ecosystem	package	affected	fixed in
crates.io	pleaser	<=0.5.4 >=0.0.0-0	no fix listed

Affected products

edneville please

Classification

Weakness

CWE-269 Improper Privilege Management

References

gitlab.com /edneville/please/-/merge_requests/69#note_1594254575
web, issue-tracking, patch
github.com /rustsec/advisory-db/pull/1798
web, issue-tracking, patch
gitlab.com /edneville/please/-/issues/13
web, exploit, issue-tracking, report
rustsec.org /advisories/RUSTSEC-2023-0066.html
web, third-party-advisory, advisory
nvd.nist.gov /vuln/detail/CVE-2023-46277
advisory
gitlab.com /edneville/please
package
crates.io /crates/pleaser
package

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.

Summary