CVE catalog
CVE-2026-49147
App::Ack versions through 3.10.0 for Perl print unsanitised terminal escape sequences from filenames in several output modes. When ack prints a filename whose basename contains terminal control bytes
- Severity
- High · CVSS 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.49% · Oct 25, 2026
App::Ack versions through 3.10.0 for Perl print unsanitised terminal escape sequences from filenames in several output modes. When ack prints a filename whose basename contains terminal control bytes such as ANSI escape sequences, those bytes reach the terminal unchanged. Version 3.10.0 added a _safe_filename helper that sanitises the filenames printed by -f, -g, the colored match heading, and per-match lines, but the --show-types, -l/-L, and -c paths still emit the raw filename. A file whose name embeds cursor-movement or color escapes can overwrite or recolor earlier terminal output, or be passed unchanged to a downstream consumer.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | ack | sid | 3.8.1-1 | vulnerable |
| Debian | ack | forky | 3.8.1-1 | vulnerable |
| Debian | ack | trixie | 3.8.1-1 | vulnerable |
| Debian | ack | bookworm | 3.6.0-1 | vulnerable |
| Cpe | ack | Not reported | Not reported | vulnerable |
| Alpine | ack | 3.24 | 3.10.0-r0 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | ack | source | sid | (unfixed) | unimportant | Not reported | Not reported |
| Debian | ack | source | forky | (unfixed) | unimportant | Not reported | Not reported |
| Debian | ack | source | trixie | (unfixed) | unimportant | Not reported | Not reported |
| Debian | ack | source | bookworm | (unfixed) | unimportant | Not reported | Not reported |
| Alpine | ack | apk | 3.24 | 3.10.0-r0 | Not reported | ALPINE-CVE-2026-49147 | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [ack]Affected
Details (2)
3.6.0-1· all · bookwormAffected
nvd · ack · debian · bookworm; nvd · ack · debian · 12
3.6.0-1· all · bookwormAffected
nvd · ack · debian · bookworm; nvd · ack · debian · 12
[Debian 13 (Trixie)]
- [ack]Affected
Details (2)
3.8.1-1· all · trixieAffected
nvd · ack · debian · 13
3.8.1-1· all · trixieAffected
nvd · ack · debian · 13
Observed:
References
- [http://www.openwall.com/lists/oss-security/2026/07/08/9]
- [https://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2026_10965-1.json]
- [https://metacpan.org/release/PETDANCE/ack-v3.10.0/source/Changes]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-49147]
- [https://osv.dev/vulnerability/ALPINE-CVE-2026-49147]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-49147]
- [https://security-tracker.debian.org/tracker/CVE-2026-49147]
[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [SUSE security advisories and VEX]