CVE catalog
CVE-2026-59247
gleam-1.18.1-1.1 on GA media
- Severity
- High · CVSS 7.6
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/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 - Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 0.18% · Oct 25, 2026
This update for gleam fixes the following issues: Changes in gleam: - Update to 1.18.1: * CVE-2026-59247: insufficient verification of data authenticity allows a MITM adversary to substitute forged Hex package contents during dependency resolution (bsc#1272992) * Set minimum required Erlang version to 26 * All features and bug fixes are extensively highlighted with examples in upstream's blog post at https://gleam.run/news/a-field-day-for-gleams-language-server/ and changelog at https://github.com/gleam-lang/gleam/blob/v1.18.1/CHANGELOG.md . Some of the highlights include: - A lot of new features for the LSP - Faster JavaScript using singletons - Deprecation of ambiguous pipe syntax - Path support in Git dependencies - Up to 13% faster compilation - Fixed various bugs in Erlang and JavaScript code generation. - Fixed several bugs in the float handling for the JavaScript target. - Fixed a bug in the generation of Erlang .app files. - Fixed a bug where the formatter would produce invalid code. - Fixed a bug in the TypeScript type definition generation. - Fixed a bug where the compiler would evaluate the numerator and denominator of a division in the wrong order. - Fixed a bug where gleam docs would not be generated.
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 |
|---|---|---|---|---|
| Opensuse | gleam | leap 16.0 | 1.18.1-bp160.1.1 | fixed |
| Opensuse | gleam | tumbleweed | 1.18.1-1.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Opensuse | gleam | rpm | leap 16.0 | 1.18.1-bp160.1.1 | Not reported | OPENSUSE-SU-2026:21557-1 | Not reported |
| Opensuse | gleam | rpm | tumbleweed | 1.18.1-1.1 | Not reported | OPENSUSE-SU-2026:11462-1 | Not reported |
OpenFactory catalog packages
[openSUSE Tumbleweed]
Observed:
References
- [https://cna.erlef.org/cves/CVE-2026-59247.html]
- [https://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2026_11462-1.json]
- [https://github.com/gleam-lang/gleam/commit/c9c0d48c123c8abae6db8dd61b25ccb427ed3d35]
- [https://github.com/gleam-lang/gleam/security/advisories/GHSA-4vvc-458m-r82g]
- [https://github.com/hexpm/specifications/blob/main/registry-v2.md]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-59247]
- [https://osv.dev/vulnerability/EEF-CVE-2026-59247]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:11462-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:21557-1]
[FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [SUSE security advisories and VEX]