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CVE-2026-75491

Cudy TR3000 before 2.5.42 MQTT JWT Authentication Bypass via alg none Tokens

Cudy TR3000 before 2.5.42 contains an authentication bypass vulnerability in the Mosquitto plugin auth_plugin_jwt.so that accepts unsigned JWTs using alg none. Attackers holding any Cudy-trusted client certificate can authenticate as admincudydevice on port 8883 and publish batchcmd requests to execute commands as root.

CVSS 4.0 · 9.2 Critical EPSS n/a KEV · Not listed
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CVE-2026-126952

Zipline through 4.4.0 WebAuthn Authentication Bypass via Passkey Login

Zipline through 4.4.0 contains an authentication bypass vulnerability in the WebAuthn login endpoint that creates sessions for a supplied registered credential ID without verifying the assertion. Attackers who obtain a target's passkey credential ID can impersonate that account without its authenticator, potentially gaining administrative control over SUPERADMIN accounts.

CVSS 4.0 · 9.2 Critical EPSS n/a KEV · Not listed
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CVE-2026-116423

Dell PowerScale InsightIQ, versions 6.3.0 through 6.4.0, contains an Improper Verification of Cryptographic Signature vulnerability. A low privileged attacker with remote access could potentially exploit this vulnerability, leading to Elevation of privileges and Information tampering.

CVSS 3.1 · 5.4 Medium EPSS n/a KEV · Not listed
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CVE-2026-0460

Bootgen Improper Authentication Allows Fixed Salt RSA Padding

Improper authentication in Bootgen could result in the use of a fixed salt value for RSA padding instead of a randomly generated salt, potentially impacting data integrity.

CVSS 4.0 · 1 Low EPSS n/a KEV · Not listed
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Amd
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CVE-2026-59074

Improper Cryptographic Signature Verification in Edito CMS

Edito CMS is vulnerable to improper cryptographic signature verification in the JWT refresh logic. An authenticated low-privilege user can submit self-crafted​ ​JWT​ containing​ ​an existing user​ ​identifier and, due to the lack of signature validation,​​  obtain​ ​a ​​valid,​​ fully-signed​​ session ​​token​​ for​​ any ​​account ​​in​ ​the​ ​system. This allows the attacker to impersonate any user, including administrators. This issue was fixed in version 5.10.2607.  Hotfixes for older versions (5.8) have also been released.

CVSS 4.0 · 8.7 High EPSS n/a KEV · Not listed
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CVE-2026-127121

SOGo before 5.12.13 S/MIME Certificate Spoofing via UIxMailView

SOGo before 5.12.13 contains an improper cryptographic signature verification vulnerability that allows remote attackers to replace a victim's contact S/MIME certificate by sending a spoofed multipart/signed message with a mismatched signature and an impersonated From address. Attackers can deliver a crafted CMS signedData object containing their own self-signed certificate, which SOGo's UIxMailView stores on the contact card without validating signature authenticity or certificate identity, enabling subsequent encrypted communications to be decrypted with the attacker's private key.

CVSS 4.0 · 7.1 High EPSS n/a KEV · Not listed
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CVE-2026-42784

Sequoia-openpgp: sequoia-openpgp: cryptographic integrity compromise via key flag confusion

A flaw was found in sequoia-openpgp. The library incorrectly infers key flags for older certificates when a key flags subpacket is missing, leading to a discrepancy in how key capabilities are viewed. This key flag confusion allows an attacker to bypass the back-signature check. Consequently, an attacker can illegitimately bind an arbitrary subkey to their own certificate and forge signatures, completely compromising cryptographic integrity.

CVSS 3.1 · 7.4 High EPSS < 1% KEV · Not listed
CVE-2026-125335

Forge: Ed25519 signature verification accepts small-order public keys

Forge (also called node-forge) is a native implementation of Transport Layer Security in JavaScript. Prior to 1.4.3, ed25519.verify() decodes a public key in crypto_sign_open() without rejecting small-order points or their non-canonical encodings. With S = 0 and a small-order R value, an attacker who can choose the public key can produce signatures that verify for many messages, or all messages with the identity key, without a private key. This can defeat proof-of-possession, attribution, non-repudiation, or deduplication checks that rely on a signature being bound to the message. Keys produced by normal Ed25519 key generation are not small-order, so applications that verify only trusted or internally generated public keys are not affected. This issue is fixed in version 1.4.3.

CVSS 3.1 · 3.7 Low EPSS < 1% KEV · Not listed
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CVE-2026-95632

CAI Content Credentials | Improper Verification of Cryptographic Signature (CWE-347)

CAI Content Credentials is affected by an Improper Verification of Cryptographic Signature vulnerability that could result in a Security feature bypass. An attacker could leverage this vulnerability to bypass security measures and gain unauthorized write access. Exploitation of this issue does not require user interaction.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
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C2pa C2pa-web C2patool and 2 more
CVE-2026-102502

CAI Content Credentials | Improper Verification of Cryptographic Signature (CWE-347)

CAI Content Credentials is affected by an Improper Verification of Cryptographic Signature vulnerability that could result in a Security feature bypass. An attacker could leverage this vulnerability to bypass security measures and gain unauthorized limited write access. Exploitation of this issue does not require user interaction.

CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
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C2pa C2pa-web C2patool and 2 more
CVE-2026-95633

CAI Content Credentials | Improper Verification of Cryptographic Signature (CWE-347)

CAI Content Credentials is affected by an Improper Verification of Cryptographic Signature vulnerability that could result in a Security feature bypass. An attacker could leverage this vulnerability to bypass security measures and gain unauthorized write access. Exploitation of this issue does not require user interaction.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
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C2pa C2pa-web C2patool and 2 more
CVE-2026-103296

CAI Content Credentials | Improper Verification of Cryptographic Signature (CWE-347)

CAI Content Credentials is affected by an Improper Verification of Cryptographic Signature vulnerability that could result in a Security feature bypass. An attacker could leverage this vulnerability to bypass security measures and gain unauthorized write access. Exploitation of this issue does not require user interaction.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
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Products
C2pa C2pa-web C2patool and 2 more
CVE-2026-123261

CAI Content Credentials | Improper Verification of Cryptographic Signature (CWE-347)

CAI Content Credentials is affected by an Improper Verification of Cryptographic Signature vulnerability that could result in a Security feature bypass. An attacker could leverage this vulnerability to bypass security measures and gain unauthorized write access. Exploit depends on conditions beyond the attacker's control. Exploitation of this issue does not require user interaction.

CVSS 3.1 · 5.9 Medium EPSS < 1% KEV · Not listed
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CVE-2026-123262

CAI Content Credentials | Improper Verification of Cryptographic Signature (CWE-347)

CAI Content Credentials is affected by an Improper Verification of Cryptographic Signature vulnerability that could result in a Security feature bypass. An attacker could leverage this vulnerability to bypass security measures and gain unauthorized write access. Exploit depends on conditions beyond the attacker's control. Exploitation of this issue does not require user interaction.

CVSS 3.1 · 5.9 Medium EPSS < 1% KEV · Not listed
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CVE-2026-121970

Pay with Vipps and MobilePay for WooCommerce before 6.4.1 Webhook Signature Forgery

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.

CVE-2026-122100

CAI Content Credentials | Improper Verification of Cryptographic Signature (CWE-347)

CAI Content Credentials is affected by an Improper Verification of Cryptographic Signature vulnerability that could result in a Security feature bypass. An attacker could leverage this vulnerability to bypass security measures and gain unauthorized write access. Exploitation of this issue requires user interaction in that a victim must visit a maliciously crafted URL or interact with a compromised web page.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
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CVE-2026-70003

JDBC Driver for SQL Server Security Feature Bypass Vulnerability

Improper verification of cryptographic signature in JDBC Driver for SQL Server allows an unauthorized attacker to bypass a security feature over a network.

CVSS 3.1 · 8.7 High EPSS < 1% KEV · Not listed
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CVE-2026-32144

OCSP designated-responder authorization bypass via missing signature verification

Improper Certificate Validation vulnerability in Erlang OTP public_key (pubkey_ocsp module) allows OCSP designated-responder authorization bypass via missing signature verification. The OCSP response validation in public_key:pkix_ocsp_validate/5 does not verify that a CA-designated responder certificate was cryptographically signed by the issuing CA. Instead, it only checks that the responder certificate's issuer name matches the CA's subject name and that the certificate has the OCSPSigning extended key usage. An attacker who can intercept or control OCSP responses can create a self-signed certificate with a matching issuer name and the OCSPSigning EKU, and use it to forge OCSP responses that mark revoked certificates as valid. This affects SSL/TLS clients using OCSP stapling, which may accept connections to servers with revoked certificates, potentially transmitting sensitive data to compromised servers. Applications using the public_key:pkix_ocsp_validate/5 API directly are also affected, with impact depending on usage context. This vulnerability is associated with program files lib/public_key/src/pubkey_ocsp.erl and program routines pubkey_ocsp:is_authorized_responder/3. This issue affects OTP from OTP 27.0 before OTP 27.3.4.10 and OTP 28.4.2, corresponding to public_key from 1.16 before 1.17.1.2 and 1.20.3, and ssl from 11.2 before 11.2.12.7 and 11.5.4.

CVSS 4.0 · 7.6 High EPSS < 1% KEV · Not listed
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