8.7

CVE-2026-33894: digitalbazaar forge Improper Input Validation

CVSS: 8.7v4.0HighDeferred
AliasesUBUNTU-CVE-2026-33894CGA-2834-6fx8-mj96CGA-28w2-cc24-2vwp
Published 27-03-2026Last modified 10-09-2026
Open JSON

Vulnerability summary

CVE-2026-33894 is a high (CVSS 8.7) Improper Input Validation vulnerability in digitalbazaar forge. EPSS estimates a 0.45% chance of exploitation in the next 30 days, higher than 37.4% of scored vulnerabilities.

Overall risk
35/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.7/10
010
High · v4.0 (NVD)
EPSS score
0.45%
0%100%
Low · -0.03 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-JRQX-J57M-XH4X

Timeline

  1. 27-03-2026
    PublishedVulnerability first disclosed.
  2. 10-09-2026
    Last modifiedVulnerability information updated.

Description

node-forge through 1.4.0 fails to validate element count in nested DigestAlgorithm sequences during RSA PKCS#1 v1.5 signature verification. Attackers can embed garbage bytes inside the DigestAlgorithm sequence to forge valid signatures for arbitrary messages using low-exponent RSA keys. This is an incomplete fix for CVE-2026-33894.

CVSS metrics

7 scores · 6 sources · 2 versions

EPSS trend

Probability

0.45%

Chance of exploitation in the next 30 days

Percentile

37%

Versus all other CVEs

30-day change

-0.03 pp

From 0.47% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.45%

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

Chainguard80 products
  • arangodb-3.11< 3.11.14.4-r10 | All versions (No fix recorded)
  • arangodb-3.12< 3.12.9.4-r4 | All versions (No fix recorded)
  • commercial-gitlab-rails-ee-19.1< 19.1.7-r3
  • commercial-gitlab-rails-ee-19.2< 19.2.7-r1
  • commercial-gitlab-rails-ee-19.3< 19.3.3-r1
Wolfi14 products
  • jitsucom-jitsu-consoleAll versions (No fix recorded)
  • 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-r40 | < 0.19.0-r31
Digitalbazaar1 product
Npm1 product
  • node-forge< 1.4.0 | ≤ 1.4.0
Ubuntu1 product
  • node-node-forgeAll versions (No fix recorded)

5 vendors · 97 products

References

32 links
Show all 32 references