Filtered by CWE-347
Total 609 CVE
CVE Vendors Products Updated CVSS v3.1
CVE-2026-20965 1 Microsoft 2 Azure Portal Windows Admin Center, Windows Admin Center 2026-01-23 7.5 High
Improper verification of cryptographic signature in Windows Admin Center allows an authorized attacker to elevate privileges locally.
CVE-2025-23206 1 Amazon 1 Aws Cloud Development Kit 2026-01-23 8.1 High
The AWS Cloud Development Kit (AWS CDK) is an open-source software development framework to define cloud infrastructure in code and provision it through AWS CloudFormation. Users who use IAM OIDC custom resource provider package will download CA Thumbprints as part of the custom resource workflow. However, the current `tls.connect` method will always set `rejectUnauthorized: false` which is a potential security concern. CDK should follow the best practice and set `rejectUnauthorized: true`. However, this could be a breaking change for existing CDK applications and we should fix this with a feature flag. Note that this is marked as low severity Security advisory because the issuer url is provided by CDK users who define the CDK application. If they insist on connecting to a unauthorized OIDC provider, CDK should not disallow this. Additionally, the code block is run in a Lambda environment which mitigate the MITM attack. The patch is in progress. To mitigate, upgrade to CDK v2.177.0 (Expected release date 2025-02-22). Once upgraded, users should make sure the feature flag '@aws-cdk/aws-iam:oidcRejectUnauthorizedConnections' is set to true in `cdk.context.json` or `cdk.json`. There are no known workarounds for this vulnerability.
CVE-2026-23518 1 Fleetdm 1 Fleet 2026-01-22 N/A
Fleet is open source device management software. In versions prior to 4.78.3, 4.77.1, 4.76.2, 4.75.2, and 4.53.3, a vulnerability in Fleet's Windows MDM enrollment flow could allow an attacker to submit forged authentication tokens that are not properly validated. Because JWT signatures were not verified, Fleet could accept attacker-controlled identity claims, enabling enrollment of unauthorized devices under arbitrary Azure AD user identities. Versions 4.78.3, 4.77.1, 4.76.2, 4.75.2, and 4.53.3 fix the issue. If an immediate upgrade is not possible, affected Fleet users should temporarily disable Windows MDM.
CVE-2026-23967 1 Juneandgreen 1 Sm-crypto 2026-01-22 7.5 High
sm-crypto provides JavaScript implementations of the Chinese cryptographic algorithms SM2, SM3, and SM4. A signature malleability vulnerability exists in the SM2 signature verification logic of the sm-crypto library prior to version 0.3.14. An attacker can derive a new valid signature for a previously signed message from an existing signature. Version 0.3.14 patches the issue.
CVE-2026-23965 1 Juneandgreen 1 Sm-crypto 2026-01-22 7.5 High
sm-crypto provides JavaScript implementations of the Chinese cryptographic algorithms SM2, SM3, and SM4. A signature forgery vulnerability exists in the SM2 signature verification logic of sm-crypto prior to version 0.4.0. Under default configurations, an attacker can forge valid signatures for arbitrary public keys. If the message space contains sufficient redundancy, the attacker can fix the prefix of the message associated with the forged signature to satisfy specific formatting requirements. Version 0.4.0 patches the issue.
CVE-2026-23992 1 Theupdateframework 1 Go-tuf 2026-01-22 5.9 Medium
go-tuf is a Go implementation of The Update Framework (TUF). Starting in version 2.0.0 and prior to version 2.3.1, a compromised or misconfigured TUF repository can have the configured value of signature thresholds set to 0, which effectively disables signature verification. This can lead to unauthorized modification to TUF metadata files is possible at rest, or during transit as no integrity checks are made. Version 2.3.1 fixes the issue. As a workaround, always make sure that the TUF metadata roles are configured with a threshold of at least 1.
CVE-2025-68925 1 Samrocketman 1 Jervis 2026-01-20 5.3 Medium
Jervis is a library for Job DSL plugin scripts and shared Jenkins pipeline libraries. Prior to 2.2, the code doesn't validate that the JWT header specifies "alg":"RS256". This vulnerability is fixed in 2.2.
CVE-2026-22817 1 Hono 1 Hono 2026-01-20 8.2 High
Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.11.4, there is a flaw in Hono’s JWK/JWKS JWT verification middleware allowed the JWT header’s alg value to influence signature verification when the selected JWK did not explicitly specify an algorithm. This could enable JWT algorithm confusion and, in certain configurations, allow forged tokens to be accepted. As part of this fix, the JWT middleware now requires the alg option to be explicitly specified. This prevents algorithm confusion by ensuring that the verification algorithm is not derived from untrusted JWT header values. This vulnerability is fixed in 4.11.4.
CVE-2026-22818 1 Hono 1 Hono 2026-01-20 8.2 High
Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.11.4, there is a flaw in Hono’s JWK/JWKS JWT verification middleware allowed the algorithm specified in the JWT header to influence signature verification when the selected JWK did not explicitly define an algorithm. This could enable JWT algorithm confusion and, in certain configurations, allow forged tokens to be accepted. The JWK/JWKS JWT verification middleware has been updated to require an explicit allowlist of asymmetric algorithms when verifying tokens. The middleware no longer derives the verification algorithm from untrusted JWT header values. This vulnerability is fixed in 4.11.4.
CVE-2025-36418 1 Ibm 1 Applinx 2026-01-20 7.3 High
IBM ApplinX 11.1 is vulnerable due to a privilege escalation vulnerability due to improper verification of JWT tokens. An attacker may be able to craft or modify a JSON web token in order to impersonate another user or to elevate their privileges.
CVE-2025-21004 2 Samsung, Samsung Mobile 12 Galaxy Watch, Galaxy Watch 4, Galaxy Watch 4 Classic and 9 more 2026-01-20 6.2 Medium
Improper verification of intent by broadcast receiver in System UI for Galaxy Watch prior to SMR Jul-2025 Release 1 allows local attackers to power off the device.
CVE-2025-12007 1 Supermicro 1 Mbd-x13sem-f 2026-01-17 7.2 High
There is a vulnerability in the Supermicro BMC firmware validation logic at Supermicro MBD-X13SEM-F . An attacker can update the system firmware with a specially crafted image.
CVE-2025-12006 1 Supermicro 1 Mbd-x12stw 2026-01-17 7.2 High
There is a vulnerability in the Supermicro BMC firmware validation logic at Supermicro MBD-X12STW-F . An attacker can update the system firmware with a specially crafted image.
CVE-2025-43023 2 Hp, Linux 5 Hp, Linux Imaging And Printing, Linux Imaging And Printing Project and 2 more 2026-01-16 9.1 Critical
A potential security vulnerability has been identified in the HP Linux Imaging and Printing Software documentation. This potential vulnerability is due to the use of a weak code signing key, Digital Signature Algorithm (DSA).
CVE-2024-21917 1 Rockwellautomation 1 Factorytalk Services Platform 2026-01-15 9.8 Critical
A vulnerability exists in Rockwell Automation FactoryTalk® Service Platform that allows a malicious user to obtain the service token and use it for authentication on another FTSP directory. This is due to the lack of digital signing between the FTSP service token and directory.  If exploited, a malicious user could potentially retrieve user information and modify settings without any authentication.
CVE-2025-59718 1 Fortinet 3 Fortios, Fortiproxy, Fortiswitchmanager 2026-01-14 9.1 Critical
A improper verification of cryptographic signature vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4.0 through 7.4.8, FortiOS 7.2.0 through 7.2.11, FortiOS 7.0.0 through 7.0.17, FortiProxy 7.6.0 through 7.6.3, FortiProxy 7.4.0 through 7.4.10, FortiProxy 7.2.0 through 7.2.14, FortiProxy 7.0.0 through 7.0.21, FortiSwitchManager 7.2.0 through 7.2.6, FortiSwitchManager 7.0.0 through 7.0.5 allows an unauthenticated attacker to bypass the FortiCloud SSO login authentication via a crafted SAML response message.
CVE-2025-59719 1 Fortinet 1 Fortiweb 2026-01-14 9.1 Critical
An improper verification of cryptographic signature vulnerability in Fortinet FortiWeb 8.0.0, FortiWeb 7.6.0 through 7.6.4, FortiWeb 7.4.0 through 7.4.9 may allow an unauthenticated attacker to bypass the FortiCloud SSO login authentication via a crafted SAML response message.
CVE-2025-46774 2 Apple, Fortinet 3 Macos, Forticlient, Forticlientmac 2026-01-14 6.8 Medium
An Improper Verification of Cryptographic Signature vulnerability [CWE-347] in FortiClient MacOS installer version 7.4.2 and below, version 7.2.9 and below, 7.0 all versions may allow a local user to escalate their privileges via FortiClient related executables.
CVE-2025-64740 2 Microsoft, Zoom 6 Windows, Workplace, Workplace App and 3 more 2026-01-13 7.5 High
Improper verification of cryptographic signature in the installer for Zoom Workplace VDI Client for Windows may allow an authenticated user to conduct an escalation of privilege via local access.
CVE-2025-68972 1 Gnupg 1 Gnupg 2026-01-09 5.9 Medium
In GnuPG through 2.4.8, if a signed message has \f at the end of a plaintext line, an adversary can construct a modified message that places additional text after the signed material, such that signature verification of the modified message succeeds (although an "invalid armor" message is printed during verification). This is related to use of \f as a marker to denote truncation of a long plaintext line.