7.5

CVE-2026-33895: digitalbazaar forge

CVSS: 7.5v3.1HighModified
AliasesUBUNTU-CVE-2026-33895CGA-3mjm-2hrg-rv62CGA-598q-56rj-4gjj
Published 27-03-2026Last modified 04-09-2026
Open JSON

Vulnerability summary

CVE-2026-33895 is a high (CVSS 7.5) vulnerability in digitalbazaar forge. EPSS estimates a 0.47% chance of exploitation in the next 30 days, higher than 39.5% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
0.47%
0%100%
Low · -0.07 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 1 · Related 1
RHSA-2026:24761CGA-34J3-GPWV-87VJ

Timeline

  1. 27-03-2026
    PublishedVulnerability first disclosed.
  2. 04-09-2026
    Last modifiedVulnerability information updated.

Description

Forge (also called `node-forge`) is a native implementation of Transport Layer Security in JavaScript. Prior to version 1.4.0, Ed25519 signature verification accepts forged non-canonical signatures where the scalar S is not reduced modulo the group order (`S >= L`). A valid signature and its `S + L` variant both verify in forge, while Node.js `crypto.verify` (OpenSSL-backed) rejects the `S + L` variant, as defined by the specification. This class of signature malleability has been exploited in practice to bypass authentication and authorization logic (see CVE-2026-25793, CVE-2022-35961). Applications relying on signature uniqueness (i.e., dedup by signature bytes, replay tracking, signed-object canonicalization checks) may be bypassed. Version 1.4.0 patches the issue.

CVSS metrics

6 scores · 6 sources · 1 version

EPSS trend

Probability

0.47%

Chance of exploitation in the next 30 days

Percentile

40%

Versus all other CVEs

30-day change

-0.07 pp

From 0.54% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.47%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Chainguard59 products
  • arangodb-3.11< 3.11.14.4-r10
  • arangodb-3.12< 3.12.9.4-r4
  • gitlab-rails-ce-18.1< 18.1.6-r25
  • gitlab-rails-ce-18.10All versions (No fix recorded)
  • gitlab-rails-ce-18.11< 18.11.6-r7
Wolfi13 products
  • katib-earlystopping< 0.19.0-r31
  • katib-suggestion-goptuna-compatAll versions (No fix recorded)
  • katib-suggestion-hyperband< 0.19.0-r31
  • katib-suggestion-hyperopt< 0.19.0-r31 | < 0.19.0-r40
  • katib-suggestion-nas-darts< 0.19.0-r31
Digitalbazaar1 product
Npm1 product
  • node-forge< 1.4.0
Ubuntu1 product
  • node-node-forgeAll versions (No fix recorded)

5 vendors · 75 products

References

17 links
Show all 17 references