CVE catalog
CVE-2026-44740
Billy is an interface filesystem abstraction for Go. Prior to versions 5.9.0 and 6.0.0-alpha.1, multiple components may improperly handle crafted or malformed input, resulting in panics, infinite loop
- 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
- 0.39% · Oct 25, 2026
Billy is an interface filesystem abstraction for Go. Prior to versions 5.9.0 and 6.0.0-alpha.1, multiple components may improperly handle crafted or malformed input, resulting in panics, infinite loops, uncontrolled recursion, or excessive resource consumption. These issues arise from insufficient validation and missing safety mechanisms such as cycle detection, recursion limits, or defensive handling of unexpected states when processing untrusted repository data and filesystem structures. This issue has been patched in versions 5.9.0 and 6.0.0-alpha.1.
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 | golang-github-go-git-go-billy | sid | 5.9.1-1 | fixed |
| Debian | golang-github-go-git-go-billy | forky | 5.9.1-1 | fixed |
| Debian | golang-github-go-git-go-billy | trixie | 5.5.0-1 | vulnerable |
| Debian | golang-github-go-git-go-billy | bookworm | 5.3.1-3 | vulnerable |
| Cpe | golang-github-go-git-go-billy | Not reported | Not reported | vulnerable |
| Go | github.com/go-git/go-billy/v5 | Not reported | 5.9.0 | fixed |
| Opensuse | trivy | leap 16.0 | 0.71.2-160000.1.1 | fixed |
| Opensuse | git-bug | tumbleweed | 0.10.1-6.1 | fixed |
| Opensuse | amazon-ssm-agent | tumbleweed | 3.3.4624.0-1.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | golang-github-go-git-go-billy | source | sid | 5.9.0-1 | not yet assigned | Not reported | Not reported |
| Debian | golang-github-go-git-go-billy | source | forky | 5.9.0-1 | not yet assigned | Not reported | Not reported |
| Debian | golang-github-go-git-go-billy | source | trixie | (unfixed) | not yet assigned | Not reported | Not reported |
| Debian | golang-github-go-git-go-billy | source | bookworm | (unfixed) | not yet assigned | Not reported | Not reported |
| Go | github.com/go-git/go-billy/v5 | Go | Not reported | 5.9.0 | Not reported | Not reported | Not reported |
| Opensuse | trivy | rpm | leap 16.0 | 0.71.2-160000.1.1 | Not reported | OPENSUSE-SU-2026:21072-1 | Not reported |
| Opensuse | git-bug | rpm | tumbleweed | 0.10.1-6.1 | Not reported | OPENSUSE-SU-2026:10996-1 | Not reported |
| Opensuse | amazon-ssm-agent | rpm | tumbleweed | 3.3.4624.0-1.1 | Not reported | OPENSUSE-SU-2026:10943-1 | Not reported |
Notes
[trixie] golang-github-go-git-go-billy: Minor issue [bookworm] golang-github-go-git-go-billy: Limited support, minor issue; DoS on malformed input
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [golang-github-go-git-go-billy-dev]Affected
Source package: [golang-github-go-git-go-billy]
Details (2)
5.3.1-3· all · bookwormAffected
nvd · golang-github-go-git-go-billy · debian · bookworm; nvd · golang-github-go-git-go-billy · debian · 12
5.3.1-3· all · bookwormAffected
nvd · golang-github-go-git-go-billy · debian · bookworm; nvd · golang-github-go-git-go-billy · debian · 12
[Debian 13 (Trixie)]
- [golang-github-go-git-go-billy-dev]Affected
Source package: [golang-github-go-git-go-billy]
Details (2)
5.5.0-1· all · trixieAffected
nvd · golang-github-go-git-go-billy · debian · 13
5.5.0-1· all · trixieAffected
nvd · golang-github-go-git-go-billy · debian · 13
[openSUSE Tumbleweed]
- [git-bug-bash-completion]Unknown
Source package: [git-bug]
Details (1)
0.10.1-6.3· noarch · tumbleweedUnknown · Fixed:
0.10.1-6.1Version impact unknown
nvd · git-bug · opensuse · tumbleweed
- [git-bug-fish-completion]Unknown
Source package: [git-bug]
Details (1)
0.10.1-6.3· noarch · tumbleweedUnknown · Fixed:
0.10.1-6.1Version impact unknown
nvd · git-bug · opensuse · tumbleweed
- [git-bug-zsh-completion]Unknown
Source package: [git-bug]
Details (1)
0.10.1-6.3· noarch · tumbleweedUnknown · Fixed:
0.10.1-6.1Version impact unknown
nvd · git-bug · opensuse · tumbleweed
- [amazon-ssm-agent]Fixed
Source package: [amazon-ssm-agent]
Details (1)
3.3.4851.0-1.1· x86_64 · tumbleweedFixed · Fixed:
3.3.4624.0-1.1nvd · amazon-ssm-agent · opensuse · tumbleweed
- [git-bug]Fixed
Source package: [git-bug]
Details (1)
0.10.1-6.3· x86_64 · tumbleweedFixed · Fixed:
0.10.1-6.1nvd · git-bug · opensuse · tumbleweed
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/suse-su-2026_22575-1.json]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-44740]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-44740]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:10943-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:10996-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:21072-1]
- [https://pkg.go.dev/vuln/GO-2026-5490]
- [https://security-tracker.debian.org/tracker/CVE-2026-44740]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-44740.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-2520.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [Go Vulnerability Database] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]