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NVD / CVE Program· CNA GitHub_M

CVE-2026-26958: filippo.io/edwards25519 MultiScalarMult function produces invalid results or undefined behavior if receiver is not the identity

Noroxi assessment

Priority: Monitor (action score 6/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.41% (FIRST EPSS).
  • Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. Special conditions such as timing or configuration are required.
  • Fixed version: FiloSottile filippo.io/edwards25519 1.1.1.

Low priority for now. Upgrade to FiloSottile filippo.io/edwards25519 1.1.1 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

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.

LowCVSS 1.7 · v4.0—No exploit Fix available
Published
Feb 19, 2026
Updated
Jun 17, 2026
EPSS
0.4% · 36th percentile

Report tools

JSON

Action score

6

Monitor

Low priority for now.

CVSS
6 / 40 · 1.7 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.4%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · GitHub_M
1.7
NVD has not scored this yet; the score shown is the CNA’s.

CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

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When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

—

Versions reported by the vendor

Affected version ranges reported by the assigning authority (GitHub_M). Independent of NVD's CPE analysis and usually ahead of it.

  • FiloSottile filippo.io/edwards25519

    • < 1.1.1affected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12golang-filippo-edwards25519from 0—
Debian:14golang-filippo-edwards25519before 1.2.0-11.2.0-1
Gofilippo.io/edwards25519before 1.1.11.1.1
openSUSE:Leap 15.6cosignbefore 3.0.5-150400.3.35.13.0.5-150400.3.35.1
openSUSE:Leap 16.0cosignbefore 3.0.5-160000.1.13.0.5-160000.1.1
openSUSE:Leap 16.0grafanabefore 11.6.14+security04-bp160.1.111.6.14+security04-bp160.1.1
openSUSE:Tumbleweedalloybefore 1.15.1-1.11.15.1-1.1
openSUSE:Tumbleweedcosignbefore 3.0.5-1.13.0.5-1.1
openSUSE:Tumbleweedgopassbefore 1.17.0-1.11.17.0-1.1
openSUSE:Tumbleweedgrafanabefore 11.6.14+security01-1.111.6.14+security01-1.1
openSUSE:Tumbleweedkumactlbefore 3.0.0-1.13.0.0-1.1
SUSE:Linux Enterprise Module for Basesystem 15 SP7alloybefore 1.16.1-150700.15.20.11.16.1-150700.15.20.1
SUSE:Linux Enterprise Module for Basesystem 15 SP7cosignbefore 3.0.5-150400.3.35.13.0.5-150400.3.35.1
SUSE:Linux Enterprise Server 16.0cosignbefore 3.0.5-160000.1.13.0.5-160000.1.1
SUSE:Multi Linux Manager Tools SLE-15golang-github-lusitaniae-apache_exporterbefore 1.0.10-150002.3.6.11.0.10-150002.3.6.1
SUSE:Multi Linux Manager Tools SLE-15golang-github-prometheus-prometheusbefore 3.5.0-150002.3.8.13.5.0-150002.3.8.1
SUSE:Multi Linux Manager Tools SLE-15grafanabefore 11.6.14+security01-150002.4.14.111.6.14+security01-150002.4.14.1
SUSE:Multi Linux Manager Tools SLE-15prometheus-blackbox_exporterbefore 0.26.0-150002.3.6.10.26.0-150002.3.6.1
SUSE:Multi Linux Manager Tools SLE-15spacecmdbefore 5.1.13-150002.3.9.35.1.13-150002.3.9.3
SUSE:Multi Linux Manager Tools SLE-15uyuni-toolsbefore 5.1.26-150002.3.12.15.1.26-150002.3.12.1

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
FiloSottile filippo.io/edwards255191.1.1 · descriptionVendor (CNA)
debian:golang-filippo-edwards255191.2.0-1 · Debian:14Package registry (OSV)
Go:filippo.io/edwards255191.1.1Package registry (OSV)
opensuse:alloy1.15.1-1.1 · openSUSE:TumbleweedPackage registry (OSV)
opensuse:cosign3.0.5-150400.3.35.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:gopass1.17.0-1.1 · openSUSE:TumbleweedPackage registry (OSV)
opensuse:grafana11.6.14+security01-1.1 · openSUSE:TumbleweedPackage registry (OSV)
opensuse:kumactl3.0.0-1.1 · openSUSE:TumbleweedPackage registry (OSV)
suse:alloy1.16.1-150700.15.20.1 · SUSE:Linux Enterprise Module for Basesystem 15 SP7Package registry (OSV)
suse:cosign3.0.5-150400.3.35.1 · SUSE:Linux Enterprise Module for Basesystem 15 SP7Package registry (OSV)
suse:golang-github-lusitaniae-apache_exporter1.0.10-150002.3.6.1 · SUSE:Multi Linux Manager Tools SLE-15Package registry (OSV)
suse:golang-github-prometheus-prometheus3.5.0-150002.3.8.1 · SUSE:Multi Linux Manager Tools SLE-15Package registry (OSV)
suse:grafana11.6.14+security01-150002.4.14.1 · SUSE:Multi Linux Manager Tools SLE-15Package registry (OSV)
suse:prometheus-blackbox_exporter0.26.0-150002.3.6.1 · SUSE:Multi Linux Manager Tools SLE-15Package registry (OSV)
suse:spacecmd5.1.13-150002.3.9.3 · SUSE:Multi Linux Manager Tools SLE-15Package registry (OSV)
suse:uyuni-tools5.1.26-150002.3.12.1 · SUSE:Multi Linux Manager Tools SLE-15Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • Special conditions such as timing or configuration are required.

If successful

Confidentiality
Integrity
Availability
Attack vector
Network
Attack complexity
High
Privileges required
None
User interaction
None
Scope
X

Weakness class (CWE)

CWE-665 · Improper Initialization

CVSS vector

CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/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

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Change log

  1. Fix✗ → ✓

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References

Show all references (2 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records