Common Weakness Enumeration

CWE-347

Weakness Allowed

Improper Verification of Cryptographic Signature

Abstraction: Base · Status: Draft

API response cwe.mitre.org

The product does not verify, or incorrectly verifies, the cryptographic signature for data.

Mapping guidance

This CWE entry is at the Base level of abstraction, which is a preferred level of abstraction for mapping to the root causes of vulnerabilities.

Carefully read both the name and description to ensure that this mapping is an appropriate fit. Do not try to 'force' a mapping to a lower-level Base/Variant simply to comply with this preferred level of abstraction.

Relationships and members
ChildOf: CWE-345 · View CWE-1000
ChildOf: CWE-345 · View CWE-1003
Modes of introduction
Architecture and Design
Implementation

REALIZATION: This weakness is caused during implementation of an architectural security tactic.

Detection methods

Automated Static Analysis

Automated static analysis, commonly referred to as Static Application Security Testing (SAST), can find some instances of this weakness by analyzing source code (or binary/compiled code) without having to execute it. Typically, this is done by building a model of data flow and control flow, then searching for potentially-vulnerable patterns that connect "sources" (origins of input) with "sinks" (destinations where the data interacts with external components, a lower layer such as the OS, etc.)

Effectiveness: High

Content history
Submission: PLOVER · 2006-07-19 · CWE Draft 3
Contribution: "Mapping CWE to 62443" Sub-Working Group · CWE-CAPEC ICS/OT SIG · 2023-04-25 · CWE 4.11

Suggested mappings to ISA/IEC 62443.

Contribution: Abhi Balakrishnan · 2024-09-10 · CWE 4.16

Provided diagram to improve CWE usability

Modification: Sean Eidemiller · Cigital · 2008-07-01 · CWE 1.0

added/updated demonstrative examples

Modification: Eric Dalci · Cigital · 2008-07-01 · CWE 1.0

updated Time_of_Introduction

Modification: CWE Content Team · MITRE · 2008-09-08 · CWE 1.0

updated Relationships, Taxonomy_Mappings

Modification: CWE Content Team · MITRE · 2009-05-27 · CWE 1.4

updated Description, Name

Modification: CWE Content Team · MITRE · 2011-06-01 · CWE 1.13

updated Common_Consequences, Relationships, Taxonomy_Mappings

Modification: CWE Content Team · MITRE · 2012-05-11 · CWE 2.2

updated Common_Consequences, Related_Attack_Patterns, Relationships, Taxonomy_Mappings

Modification: CWE Content Team · MITRE · 2014-07-30 · CWE 2.8

updated Demonstrative_Examples, Relationships

Modification: CWE Content Team · MITRE · 2015-12-07 · CWE 2.9

updated Relationships

Modification: CWE Content Team · MITRE · 2017-01-19 · CWE 2.10

updated Relationships

Modification: CWE Content Team · MITRE · 2017-11-08 · CWE 3.0

updated Applicable_Platforms, Modes_of_Introduction, Relationships

Modification: CWE Content Team · MITRE · 2019-01-03 · CWE 3.2

updated Taxonomy_Mappings

Modification: CWE Content Team · MITRE · 2020-02-24 · CWE 4.0

updated Relationships

Modification: CWE Content Team · MITRE · 2020-08-20 · CWE 4.2

updated Related_Attack_Patterns

Modification: CWE Content Team · MITRE · 2021-10-28 · CWE 4.6

updated Relationships

Modification: CWE Content Team · MITRE · 2023-01-31 · CWE 4.10

updated Description

Modification: CWE Content Team · MITRE · 2023-04-27 · CWE 4.11

updated Detection_Factors, Relationships, Taxonomy_Mappings

Modification: CWE Content Team · MITRE · 2023-06-29 · CWE 4.12

updated Mapping_Notes

Modification: CWE Content Team · MITRE · 2024-11-19 · CWE 4.16

updated Diagram

Modification: CWE Content Team · MITRE · 2025-12-11 · CWE 4.19

updated Relationships, Weakness_Ordinalities

1578 vulnerabilities reference this CWE, most recent first.

CVE-2026-123605 (GCVE-0-2026-123605)

Vulnerability from cvelistv5 – Published: 2026-11-08 01:38 – Updated: 2026-11-08 01:38
VLAI
Title
Hickory DNS through 0.25.0-alpha.3 DNSSEC Validation Bypass via RRSIG Signer's Name
Summary
Hickory DNS hickory-proto 0.1 through 0.25.0-alpha.3 and hickory-net before 0.26.2 contain a DNSSEC validation bypass because the validator verifies an RRSIG against the DNSKEY of whatever name appears in its Signer's Name field without checking that this name is the zone containing the RRset. Attackers controlling any secure zone can produce valid signatures over arbitrary records in unrelated zones, which resolvers, recursors, and clients using DnssecDnsHandle accept as authenticated.
Severity
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-347 - Improper Verification of Cryptographic Signature
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 7605 records in the last 180 days details
References
Impacted products
Vendor Product Version
hickory-dns hickory-dns Affected: 0.1 , ≤ 0.25.0-alpha.3 (custom)
Create a notification for this product.
hickory-dns hickory-dns Affected: 0.26.0-beta.1 , < 0.26.2 (semver)
Unaffected: 0.26.2 (semver)
Create a notification for this product.
Date Public
2026-09-03 00:00
Credits
qifan-sailboat
Show details on NVD website
To clipboard 

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CVE-2026-123590 (GCVE-0-2026-123590)

Vulnerability from cvelistv5 – Published: 2026-11-08 01:38 – Updated: 2026-11-08 01:38
VLAI
Title
Hickory DNS 0.26.0-beta.1 before 0.26.2 Improper NSEC/NSEC3 Signature Validation
Summary
Hickory DNS hickory-net 0.26.0-beta.1 before 0.26.2 and hickory-proto through 0.26.0-alpha.1 accept NSEC and NSEC3 records for DNSSEC nonexistence proofs when any other record with the same owner name passes signature validation. Attackers able to supply DNS responses can mix validly signed records with bogus same-name NSEC or NSEC3 records of different types in the authority section to forge nonexistence proofs.
Severity
6.3 (Medium)
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N
4.8 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L
CWE
  • CWE-347 - Improper Verification of Cryptographic Signature
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 7605 records in the last 180 days details
References
Impacted products
Vendor Product Version
hickory-dns hickory-dns Affected: 0.26.0-beta.1 , < 0.26.2 (semver)
Unaffected: 0.26.2 (semver)
Create a notification for this product.
hickory-dns hickory-dns Affected: 0 , ≤ 0.26.0-alpha.1 (semver)
Create a notification for this product.
Date Public
2026-09-03 00:00
Credits
qifan-sailboat
Show details on NVD website
To clipboard 

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CVE-2026-123538 (GCVE-0-2026-123538)

Vulnerability from cvelistv5 – Published: 2026-11-08 01:37 – Updated: 2026-11-08 01:37
VLAI
Title
OpenAM before 16.1.4 SAML 1.x Signature Verification Issuer Impersonation
Summary
OpenAM before 16.1.4 does not verify that a signed SAML 1.x assertion or response was signed by the partner named as its issuer, accepting a signature from any certificate in OpenAM's keystore. An attacker holding such a private key, such as a trusted SAML 1.x partner, can forge assertions claiming another partner's issuer and sign in as that partner's users, including privileged ones.
Severity
7.5 (High)
CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
6.6 (Medium)
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-347 - Improper Verification of Cryptographic Signature
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 7605 records in the last 180 days details
References
Impacted products
Vendor Product Version
OpenIdentityPlatform OpenAM Affected: 0 , < 16.1.4 (semver)
Unaffected: 16.1.4 (semver)
    cpe:2.3:a:openidentityplatform:openam:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-10-22 00:00
Credits
isazajuancarlos vharseko maximthomas tsujiguchitky
Show details on NVD website
To clipboard 

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CVE-2026-122267 (GCVE-0-2026-122267)

Vulnerability from cvelistv5 – Published: 2026-11-05 22:00 – Updated: 2026-11-05 22:00
VLAI
Summary
MinIO Signature V4 verification before RELEASE.2026-09-22T19-25-18Z accepts unsigned x-amz-* headers, letting a presigned PUT URL be escalated into a cross-bucket read.
Severity
8.8 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
CWE
  • CWE-347 - Improper verification of cryptographic signature
Assigner
chainguard CNA under the icscert root
CNA scorecard – unranked: 6 records in the last 180 days, 10 needed details
References
Impacted products
Vendor Product Version
Chainguard MinIO Affected: 0 , ≤ RELEASE.2026-09-21T00-15-41Z (custom)
Create a notification for this product.
Date Public
2026-11-05 21:43
Credits
Oren Yomtov of Act Security
Show details on NVD website
To clipboard 

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CVE-2026-121970 (GCVE-0-2026-121970)

Vulnerability from cvelistv5 – Published: 2026-11-04 13:01 – Updated: 2026-11-04 18:47 X_Open Source
VLAI
Title
Pay with Vipps and MobilePay for WooCommerce before 6.4.1 Webhook Signature Forgery
Summary
Pay with Vipps and MobilePay for WooCommerce (woo-vipps) before 6.4.1 contains an improper cryptographic signature verification vulnerability in the recurring-payment webhook handler that allows unauthenticated attackers to forge webhook requests when no local webhook secret is stored, because the code fails to return on an empty secret and computes an HMAC keyed with an empty string using a loose == comparison instead of hash_equals. Attackers can craft a recurring.agreement-stopped.v1 event with a known agreementId and a matching empty-key signature to cancel a victim's active WooCommerce subscription.
Severity
6.3 (Medium)
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
3.7 (Low)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-04 18:46 UTC
CWE
  • CWE-347 - Improper Verification of Cryptographic Signature
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 7605 records in the last 180 days details
References
Impacted products
Vendor Product Version
wphostingdev Pay with Vipps and MobilePay for WooCommerce Affected: 5.0.0 , < 6.4.1 (semver)
    cpe:2.3:a:wphostingdev:pay_with_vipps_and_mobilepay_for_woocommerce:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-11-03 00:00
Credits
buiih
Show details on NVD website
To clipboard 

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CVE-2026-121606 (GCVE-0-2026-121606)

Vulnerability from cvelistv5 – Published: 2026-11-04 01:00 – Updated: 2026-11-04 01:00
VLAI
Title
Qihoo 360 D621-2/D603-2/D600-2/D619/D606-6/D706 Firmware Signature Verification iscm verify_sign signature verification
Summary
A vulnerability has been found in Qihoo 360 D621-2, D603-2, D600-2, D619, D606-6 and D706 up to 6.4.9. Affected by this issue is the function verify_sign of the file fs2/bin/iscm of the component Firmware Signature Verification. Such manipulation of the argument sign leads to improper verification of cryptographic signature. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
10 (Critical)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P
10 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:C
10 (Critical)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:C
CWE
  • CWE-347 - Improper Verification of Cryptographic Signature
  • CWE-345 - Insufficient Verification of Data Authenticity
Assigner
VulDB CNA under the mitre root
CNA scorecard B 83/100 over 3804 records in the last 180 days details
References
URL Tags
https://vuldb.com/vuln/430443 vdb-entrytechnical-description
https://vuldb.com/vuln/430443/cti signaturepermissions-required
https://vuldb.com/cve/CVE-2026-121606 third-party-advisory
https://vuldb.com/submit/1023261 third-party-advisory
https://gist.github.com/gajgdm6-cpu/cf98af20ddb77… exploit
Impacted products
Vendor Product Version
Qihoo 360 D621-2 Affected: 6.4.0
Affected: 6.4.1
Affected: 6.4.2
Affected: 6.4.3
Affected: 6.4.4
Affected: 6.4.5
Affected: 6.4.6
Affected: 6.4.7
Affected: 6.4.8
Affected: 6.4.9
    cpe:2.3:a:qihoo_360:d621-2:*:*:*:*:*:*:*:*
Create a notification for this product.
Qihoo 360 D603-2 Affected: 6.4.0
Affected: 6.4.1
Affected: 6.4.2
Affected: 6.4.3
Affected: 6.4.4
Affected: 6.4.5
Affected: 6.4.6
Affected: 6.4.7
Affected: 6.4.8
Affected: 6.4.9
    cpe:2.3:a:qihoo_360:d603-2:*:*:*:*:*:*:*:*
Create a notification for this product.
Qihoo 360 D600-2 Affected: 6.4.0
Affected: 6.4.1
Affected: 6.4.2
Affected: 6.4.3
Affected: 6.4.4
Affected: 6.4.5
Affected: 6.4.6
Affected: 6.4.7
Affected: 6.4.8
Affected: 6.4.9
    cpe:2.3:a:qihoo_360:d600-2:*:*:*:*:*:*:*:*
Create a notification for this product.
Qihoo 360 D619 Affected: 6.4.0
Affected: 6.4.1
Affected: 6.4.2
Affected: 6.4.3
Affected: 6.4.4
Affected: 6.4.5
Affected: 6.4.6
Affected: 6.4.7
Affected: 6.4.8
Affected: 6.4.9
    cpe:2.3:a:qihoo_360:d619:*:*:*:*:*:*:*:*
Create a notification for this product.
Qihoo 360 D606-6 Affected: 6.4.0
Affected: 6.4.1
Affected: 6.4.2
Affected: 6.4.3
Affected: 6.4.4
Affected: 6.4.5
Affected: 6.4.6
Affected: 6.4.7
Affected: 6.4.8
Affected: 6.4.9
    cpe:2.3:a:qihoo_360:d606-6:*:*:*:*:*:*:*:*
Create a notification for this product.
Qihoo 360 D706 Affected: 6.4.0
Affected: 6.4.1
Affected: 6.4.2
Affected: 6.4.3
Affected: 6.4.4
Affected: 6.4.5
Affected: 6.4.6
Affected: 6.4.7
Affected: 6.4.8
Affected: 6.4.9
    cpe:2.3:a:qihoo_360:d706:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
xiaomao (VulDB User) VulDB CNA Team
Show details on NVD website
To clipboard 

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CVE-2026-120459 (GCVE-0-2026-120459)

Vulnerability from cvelistv5 – Published: 2026-11-02 14:29 – Updated: 2026-11-02 14:29
VLAI
Title
python-jose through 3.5.0 Authentication Bypass via Empty HMAC Key
Summary
python-jose through 3.5.0 contains an authentication bypass vulnerability that allows unauthenticated attackers to forge JWTs because HMACKey and CryptographyHMACKey accept zero-length HMAC secrets. When an application's HS256/HS384/HS512 verification key resolves to empty, such as an oct JWK with empty k, attackers can forge tokens with arbitrary claims that jwt.decode accepts.
Severity
9.1 (Critical)
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
7.4 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
CWE
  • CWE-347 - Improper Verification of Cryptographic Signature
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 7605 records in the last 180 days details
References
Impacted products
Vendor Product Version
mpdavis python-jose Affected: 0 , ≤ 3.5.0 (semver)
    cpe:2.3:a:python-jose_project:python-jose:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-03-08 00:00
Credits
Gavin Blacklock Conner Webber
Show details on NVD website
To clipboard 

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CVE-2026-119561 (GCVE-0-2026-119561)

Vulnerability from cvelistv5 – Published: 2026-10-30 11:31 – Updated: 2026-10-30 16:21
VLAI
Title
phpMyAdmin through 5.2.3 WebAuthn Two-Factor Authentication Bypass via CustomServer
Summary
phpMyAdmin through 5.2.3 contains an authentication bypass vulnerability in CustomServer::parseAndValidateAssertionResponse() that never verifies WebAuthn assertion signatures against stored public keys. Attackers holding a victim's MySQL credentials can POST a crafted webauthn_request_response with matching challenge, origin, and rpIdHash to bypass the second factor and gain database privileges.
Severity
7.6 (High)
CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
6.8 (Medium)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-30 16:21 UTC
CWE
  • CWE-347 - Improper Verification of Cryptographic Signature
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 7605 records in the last 180 days details
References
Impacted products
Vendor Product Version
phpMyAdmin phpMyAdmin Affected: 0 , ≤ 5.2.3 (semver)
    cpe:2.3:a:phpmyadmin:phpmyadmin:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-09-20 00:00
Credits
Abraxas Labs
Show details on NVD website
To clipboard 

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CVE-2026-119037 (GCVE-0-2026-119037)

Vulnerability from cvelistv5 – Published: 2026-10-30 12:56 – Updated: 2026-11-06 15:53
VLAI
Title
Business::GoCardless versions before 1.01 for Perl accept forged webhooks when a configured webhook secret is undef or empty
Summary
Business::GoCardless versions before 1.01 for Perl accept forged webhooks when a configured webhook secret is undef or empty. signature_valid uses each configured secret as the HMAC key, and nothing rejects undef or an empty string, both of which Digest::SHA treats as an empty key. A secret read from an unset environment variable, or an empty entry in a list of rotated secrets, is used as is. A remote attacker can sign a forged webhook with an empty key and have it accepted as sent by GoCardless.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-06 15:53 UTC
CWE
  • CWE-347 - Improper Verification of Cryptographic Signature
Assigner
CPANSec CNA under the redhat root
CNA scorecard C 61/100 over 361 records in the last 180 days details
References
Impacted products
Vendor Product Version
Affected: 0 , < 1.01 (custom)
Show details on NVD website
To clipboard 

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                "timestamp": "2026-11-06T15:53:10.969416Z",
                "version": "2.0.3"
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          "shortName": "CISA-ADP"
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        "title": "CISA ADP Vulnrichment"
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          "modules": [
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          "packageName": "Business-GoCardless",
          "packageURL": "pkg:cpan/Business-GoCardless",
          "programFiles": [
            "lib/Business/GoCardless/Utils.pm"
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          "programRoutines": [
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              "name": "Business::GoCardless::Utils::signature_valid"
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          "repo": "https://github.com/payprop/business-gocardless",
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            {
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              "status": "affected",
              "version": "0",
              "versionType": "custom"
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        {
          "lang": "en",
          "value": "Business::GoCardless versions before 1.01 for Perl accept forged webhooks when a configured webhook secret is undef or empty.\n\nsignature_valid uses each configured secret as the HMAC key, and nothing rejects undef or an empty string, both of which Digest::SHA treats as an empty key. A secret read from an unset environment variable, or an empty entry in a list of rotated secrets, is used as is.\n\nA remote attacker can sign a forged webhook with an empty key and have it accepted as sent by GoCardless."
        }
      ],
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              "cweId": "CWE-347",
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        "orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
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      "references": [
        {
          "tags": [
            "release-notes"
          ],
          "url": "https://metacpan.org/release/LEEJO/Business-GoCardless-1.01/changes"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "value": "Upgrade to Business-GoCardless 1.01 or later."
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Business::GoCardless versions before 1.01 for Perl accept forged webhooks when a configured webhook secret is undef or empty",
      "x_generator": {
        "engine": "cpansec-cna-tool 0.1"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
    "assignerShortName": "CPANSec",
    "cveId": "CVE-2026-119037",
    "datePublished": "2026-10-30T12:56:27.922Z",
    "dateReserved": "2026-10-29T11:38:31.744Z",
    "dateUpdated": "2026-11-06T15:53:15.012Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
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CVE-2026-118774 (GCVE-0-2026-118774)

Vulnerability from cvelistv5 – Published: 2026-10-29 18:33 – Updated: 2026-11-03 16:17
VLAI
Title
Forge: Certificate signature verified with the issuer's RSA signature scheme
Summary
Forge (also called node-forge) is a native implementation of Transport Layer Security in JavaScript. Prior to 1.4.1, the affected implementation used certificate.verify(child), _verifySignature(), lib/x509.js to process the relevant input or security decision. node-forge selected RSA padding and RSASSA-PSS parameters from the issuer certificate rather than the child certificate being verified. A child labeled as RSASSA-PSS could therefore be accepted with a PKCS#1 v1.5 signature when the issuer used PKCS#1 v1.5. The signature still had to be produced with the trusted issuer's private key, so this did not permit certificate identity forgery, but it could bypass policies that require a declared signature scheme. This issue is fixed in version 1.4.1.
Severity
3.7 (Low)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-03 16:07 UTC
CWE
  • CWE-347 - Improper Verification of Cryptographic Signature
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7895 records in the last 180 days details
References
Impacted products
Vendor Product Version
digitalbazaar forge Affected: < 1.4.1
Create a notification for this product.
Show details on NVD website
To clipboard 

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No mitigation information available for this CWE.

CAPEC-463: Padding Oracle Crypto Attack

An adversary is able to efficiently decrypt data without knowing the decryption key if a target system leaks data on whether or not a padding error happened while decrypting the ciphertext. A target system that leaks this type of information becomes the padding oracle and an adversary is able to make use of that oracle to efficiently decrypt data without knowing the decryption key by issuing on average 128*b calls to the padding oracle (where b is the number of bytes in the ciphertext block). In addition to performing decryption, an adversary is also able to produce valid ciphertexts (i.e., perform encryption) by using the padding oracle, all without knowing the encryption key.

CAPEC-475: Signature Spoofing by Improper Validation

An adversary exploits a cryptographic weakness in the signature verification algorithm implementation to generate a valid signature without knowing the key.

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