CVE catalog
CVE-2026-26958
filippo.io/edwards25519 is a Go library implementing the edwards25519 elliptic curve with APIs for building cryptographic primitives. In versions 1.1.0 and earlier, MultiScalarMult produces invalid re
- Severity
- Medium · CVSS 6.5
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:L - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.41% · Oct 25, 2026
filippo.io/edwards25519 is a Go library implementing the edwards25519 elliptic curve with APIs for building cryptographic primitives. In versions 1.1.0 and earlier, MultiScalarMult produces invalid results or undefined behavior if the receiver is not the identity point. If (*Point).MultiScalarMult is called on an initialized point that is not the identity point, it returns an incorrect result. If the method is called on an uninitialized point, the behavior is undefined. In particular, if the receiver is the zero value, MultiScalarMult returns an invalid point that compares Equal to every other point. Note that MultiScalarMult is a rarely used, advanced API. For example, users who depend on filippo.io/edwards25519 only through github.com/go-sql-driver/mysql are not affected. This issue has been fixed in version 1.1.1.
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-filippo-edwards25519 | sid | 1.2.0-2 | fixed |
| Debian | golang-filippo-edwards25519 | forky | 1.2.0-2 | fixed |
| Debian | golang-filippo-edwards25519 | trixie | 1.0.0~rc1+git20210721-0.1 | vulnerable |
| Debian | golang-filippo-edwards25519 | bookworm | 1.0.0~rc1+git20210721-0.1 | vulnerable |
| Cpe | golang-filippo-edwards25519 | Not reported | Not reported | vulnerable |
| Go | filippo.io/edwards25519 | Not reported | 1.1.1 | fixed |
| Go | filippo.io/edwards25519 | Not reported | 1.1.1 | fixed |
| Opensuse | gopass | tumbleweed | 1.17.0-1.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | golang-filippo-edwards25519 | source | sid | 1.2.0-1 | not yet assigned | Not reported | [1128618] |
| Debian | golang-filippo-edwards25519 | source | forky | 1.2.0-1 | not yet assigned | Not reported | [1128618] |
| Debian | golang-filippo-edwards25519 | source | trixie | (unfixed) | not yet assigned | Not reported | [1128618] |
| Debian | golang-filippo-edwards25519 | source | bookworm | (unfixed) | not yet assigned | Not reported | [1128618] |
| Go | filippo.io/edwards25519 | Go | Not reported | 1.1.1 | Not reported | GHSA-FW7P-63QQ-7HPR | Not reported |
| Go | filippo.io/edwards25519 | Go | Not reported | 1.1.1 | Not reported | GO-2026-4503 | Not reported |
| Opensuse | gopass | rpm | tumbleweed | 1.17.0-1.1 | Not reported | OPENSUSE-SU-2026:11650-1 | Not reported |
Notes
[trixie] golang-filippo-edwards25519: Minor issue; MultiScalarMult is a rarely used advanced API [bookworm] golang-filippo-edwards25519: Minor issue; MultiScalarMult is a rarely used advanced API
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [golang-filippo-edwards25519-dev]Affected
Source package: [golang-filippo-edwards25519]
Details (2)
1.0.0~rc1+git20210721-0.1· all · bookwormAffected
nvd · golang-filippo-edwards25519 · debian · bookworm; nvd · golang-filippo-edwards25519 · debian · 12
1.0.0~rc1+git20210721-0.1· all · bookwormAffected
nvd · golang-filippo-edwards25519 · debian · bookworm; nvd · golang-filippo-edwards25519 · debian · 12
[Debian 13 (Trixie)]
- [golang-filippo-edwards25519-dev]Affected
Source package: [golang-filippo-edwards25519]
Details (2)
1.0.0~rc1+git20210721-0.1· all · trixieAffected
nvd · golang-filippo-edwards25519 · debian · 13
1.0.0~rc1+git20210721-0.1· all · trixieAffected
nvd · golang-filippo-edwards25519 · debian · 13
[openSUSE Tumbleweed]
- [gopass]Affected
Source package: [gopass]
Details (1)
1.16.1-1.7· x86_64 · tumbleweedAffected · Fixed:
1.17.0-1.1nvd · gopass · opensuse · tumbleweed
- [gopass-bash-completion]Unknown
Source package: [gopass]
Details (1)
1.16.1-1.7· noarch · tumbleweedUnknown · Fixed:
1.17.0-1.1Version impact unknown
nvd · gopass · opensuse · tumbleweed
- [gopass-fish-completion]Unknown
Source package: [gopass]
Details (1)
1.16.1-1.7· noarch · tumbleweedUnknown · Fixed:
1.17.0-1.1Version impact unknown
nvd · gopass · opensuse · tumbleweed
- [gopass-impersonate-pass]Unknown
Source package: [gopass]
Details (1)
1.16.1-1.7· noarch · tumbleweedUnknown · Fixed:
1.17.0-1.1Version impact unknown
nvd · gopass · opensuse · tumbleweed
- [gopass-zsh-completion]Unknown
Source package: [gopass]
Details (1)
1.16.1-1.7· noarch · tumbleweedUnknown · Fixed:
1.17.0-1.1Version impact unknown
nvd · gopass · opensuse · tumbleweed
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2026_11650-1.json]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-26958]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-26958]
- [https://osv.dev/vulnerability/GO-2026-4503]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:11650-1]
- [https://security-tracker.debian.org/tracker/CVE-2026-26958]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-26958.json]
[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]