CVE-2026-87802

Apache Syncope: SRA OAuth2 JWT signature verification bypass

Improper verification of cryptographic signature vulnerability in Apache Syncope. When SRA is configured for OAuth 2.0 without JWKS set URI assigned, an attacker can forge arbitrary JWTs to impersonate any user identity and permissions, gaining full access to services proxied by SRA. This issue affects Apache Syncope: from 3.0.0-M0 through 3.0.16, from 4.0.0-M0 through 4.0.7, from 4.1.0-M0 through 4.1.2. Users are recommended to upgrade to version 4.0.8 / 4.1.3, which fix this issue.

CVSS 3.1 · 9.1 Critical EPSS < 1% KEV · Not listed

Vendors

Apache

Products

Syncope

CVE-2026-50025

Mousehole: Unauthenticated HTTP/WebSocket boundary exposes and mutates MAM cookie state

Mousehole is a background service to update a seedbox IP for MAM and web app to manage it. Prior to version 0.4.05, Mousehole's HTTP/WebSocket management boundary is reachable without application-layer authentication or browser/LAN provenance checks. The service stores a MyAnonamouse (MAM) session cookie in state and reuses the same cookie-bearing serialization for persisted state, public API responses, and WebSocket state updates. Any client that can reach the published Mousehole port can read cookie-bearing state, connect to WebSocket state updates, replace the stored cookie, or force MAM update side effects. The deployment examples publish port 5010 broadly with Docker's `5010:5010` syntax, which can make the issue reachable on mixed-trust LAN/VPN interfaces. Version 0.4.0 patches the issue.

CVSS 4.0 · 6.9 Medium EPSS < 1% KEV · Not listed

Vendors

T-mart

Products

Mousehole

CVE-2026-54248

Doco-CD has an OCI Trust Policy Bypass via Artifact-Contained Configuration

Doco-CD is a GitOps continuous delivery tool that automatically deploys and updates Docker Compose projects/services and Swarm stacks. Prior to version 0.90.1, a trust-boundary flaw in OCI artifact verification allowed artifact-provided deployment config to influence the policy used to verify that same artifact. When global OCI signature verification was enabled via `OCI_TRUST_POLICY` (`enabled: true`), an attacker with write access to the configured OCI tag could publish an unsigned or improperly signed artifact containing `.doco-cd.yml` with `oci.verify: false`. This could cause signature verification to be bypassed and untrusted deployment content to be applied. This primarily impacts users deploying from OCI artifacts where deployment config is read from artifact contents (for example, poll/webhook flows without trusted inline deployment overrides). The issue is fixed by enforcing a strict trust boundary and no-downgrade behavior. First, artifact-contained `.doco-cd.yml` is treated as untrusted for OCI trust-policy override decisions. Second, if global `OCI_TRUST_POLICY.enabled` is `true`, per-deployment `oci.verify: false` cannot disable verification. Some workarounds are available. Do not source deployment config from untrusted OCI artifact contents. Use trusted inline `POLL_CONFIG.deployments` and avoid relying on artifact-contained trust-policy overrides. Restrict write/push permissions for OCI repositories/tags used by doco-cd. Prefer immutable digest pinning and protected release/tag workflows. Monitor for unexpected artifact digest changes and failed/suspicious verification events.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed

Vendors

Kimdre

Products

Doco-cd

CVE-2026-54174

melange: Incomplete package integrity verification allows data section substitution

melange allows users to build apk packages using declarative pipelines. Apko prior to version 1.2.9, corresponding to melange prior to version 0.50.4, verified the control section hash (`.PKGINFO` etc.) against the signed `APKINDEX`, but never verified the data section hash (the actual package files that get installed). An attacker who could compromise a mirror, poison a cache, or MITM a package fetch could substitute arbitrary file contents while the control hash check still passed. Apko version 1.2.9 and melange version 0.50.4 contain a fix.

CVSS 3.1 · 8.3 High EPSS < 1% KEV · Not listed

Vendors

Chainguard-dev

Products

Apko Melange

CVE-2026-45057

matrix-sdk-ui: Incomplete edit validation

matrix-sdk-ui provides GUI-centric utilities on top of matrix-rust-sdk. The message edit validation logic in the `matrix-sdk-ui` crate prior to 0.17.0 is missing a check: when replacing an encrypted event, the replacement event itself is not required to be encrypted. This enables a malicious homeserver administrators (or actors with equivalent power) to impersonate or spoof messages as if they were sent by a victim user. `matrix-sdk-ui` 0.17.0 fixes the message edit validation logic to align with the algorithm for replacement events[^1] described in the Matrix specification. No known workarounds are available.

CVSS 3.1 · 4.9 Medium EPSS < 1% KEV · Not listed

Vendors

Matrix-org

Products

Matrix-sdk-ui

CVE-2026-85394

python-jose through 3.5.0 Algorithm Confusion via DER-encoded Public Key as HMAC Secret

python-jose through 3.5.0 fails to properly validate asymmetric keys in HMAC initialization, accepting DER-encoded public keys that lack PEM armor or SSH prefixes. Attackers holding the service's public key can forge HS256 tokens that pass verification when algorithms are not explicitly restricted. This is an incomplete fix for CVE-2024-33663.

CVSS 4.0 · 9.3 Critical EPSS < 1% KEV · Not listed

Vendors

Mpdavis Python-jose Project

Products

Python-jose Python-jose

CVE-2026-87732

Potential Plaintext Exposure from Forged Tag in Mirage-Crypto AES/GCM and ChaCha20 Decrypt Functions

An issue was discovered in the mirage-crypto package before 2.2.0 for OCaml. The AES.GCM.authenticate_decrypt_into and Chacha20.authenticate_decrypt_into functions write the decrypted plaintext into a caller-provided buffer and only then compares the tag. On a forged tag, the functions returns false, but the destination buffer already holds the full plaintext.

CVSS 3.1 · 6.2 Medium EPSS < 1% KEV · Not listed

Vendors

Ocaml

Products

Mirage-crypto-pk

CVE-2026-89042

passport-saml-encrypted through 0.1.13 Authentication Bypass via Missing Signature Verification

passport-saml-encrypted through 0.1.13 makes SAML signature verification conditional on an optional cert option, allowing attackers to bypass authentication by submitting unsigned SAML responses. Attackers can post forged SAML responses with arbitrary NameID and attributes to the assertion consumer service endpoint to receive authenticated profiles without valid signatures.

CVSS 4.0 · 9.3 Critical EPSS < 1% KEV · Not listed

Vendors

Krakenjs

Products

Passport-saml-encrypted

CVE-2026-89043

passport-saml-encrypted through 0.1.13 XML Signature Wrapping via Assertion Prepending

passport-saml-encrypted through 0.1.13 contains an XML signature wrapping vulnerability where signature verification and assertion extraction use independent XPath lookups with no cross-validation. Attackers holding any validly signed SAML message can prepend a forged unsigned assertion that gets accepted as the verified identity while the genuine signature validates against the original assertion.

CVSS 4.0 · 9.1 Critical EPSS < 1% KEV · Not listed

Vendors

Krakenjs

Products

Passport-saml-encrypted

CVE-2026-89086

Incomplete RSA Signature Validation in OCaml jose Before 0.11.0

In the jose package before 0.11.0 for OCaml, library calls to validate an RSA signature only confirm that PKCS #1 decoding succeeds, and proceed to declare the signature valid without the required steps that involve the public key.

CVSS 3.1 · 9.1 Critical EPSS < 1% KEV · Not listed

Vendors

Ocaml

Products

Jose

CVE-2026-73784

HPE IceWall products, Remote Bypass of Security Restrictions

A potential security vulnerability in HPE IceWall products could be exploited to tamper SAML response, allowing an attacker to impersonate another user.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed

Vendors

Hewlett Packard Enterprise

Products

Hpe Icewall Products

CVE-2026-80469

CVE-2026-80469

An attacker may achieve arbitrary code execution on a target system by uploading a malicious device driver package, bypassing driver verification mechanisms, and triggering the execution of attacker-controlled code. User interaction is required.

CVSS 3.1 · 8.3 High EPSS < 1% KEV · Not listed

Vendors

Sick Ag

Products

Sentio Creator Extension 'device Manager'

CVE-2026-54047

Laci Synchroni Backend Vulnerable to Account Takeover / User Impersonation via Client-Side Configuration Manipulation

Laci Synchroni is a decentralized mod and appearance sync server and plugin for Dalamud. Versions of the backend prior to 1.2.3 have an improper authentication vulnerability in the application's OAuth2 login flow. The application relies on client-side state by trusting the `UID` field inside the `Authentications` object of a user's local `config.json` file. By manually editing this local file on their PC prior to logging in, a user can supply an arbitrary UID. Because the server fails to validate that the authenticated OAuth2 identity matches the requested UID, an attacker can fully impersonate any target user and perform actions on their behalf. This issue has been resolved in version 1.2.3. The patch modifies `AuthorizeOauthAsync` inside the `SecretKeyAuthenticatorService` to strictly bind the lookup of the requested User ID (`requestedUid`) to the record of the successfully authenticated identity (`primaryUid`). The server will no longer load or return session tokens for a requested UID unless it matches the verified, authenticated database record. No known workarounds are available.

CVSS 4.0 · 9.2 Critical EPSS < 1% KEV · Not listed

Vendors

Lacisynchroni

Products

Server

CVE-2026-73316

XenForo < 2.3.13 Payment Replay via PayPal REST Payment Provider

XenForo before 2.3.13 contains a payment replay vulnerability in the PayPal REST payment provider that allows attackers to process the same webhook payload multiple times by exploiting a missing duplicate transaction ID check. Attackers can replay a valid webhook payload to trigger duplicate payment events, resulting in repeated subscription activations and unauthorized account upgrades.

CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed

Vendors

Xenforo

Products

Xenforo

CVE-2026-89251

AVideo Missing Authorization via AD_Server log.php Wallet Credit

AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 fails to validate ad impressions in plugin/AD_Server/log.php, allowing logged-in users to submit arbitrary label values that trigger unverified wallet credits to campaign video owners. Attackers can repeatedly POST label=start requests to mint YPTWallet balance for any campaign video without proof an ad actually played.

CVSS 4.0 · 7.1 High EPSS < 1% KEV · Not listed

Vendors

Wwbn

Products

Avideo

CVE-2026-69105

Potential package cache integrity issue in JFrog Artifactory

An unauthenticated attacker may cause untrusted package content to be cached under specific conditions, potentially affecting artifact integrity and availability.

CVSS 3.1 · 8.1 High EPSS < 1% KEV · Not listed

Vendors

Jfrog

Products

Artifactory

CVE-2026-76245

stigmem Federation Peer Token Timestamp Validation Bypass

stigmem (pip package stigmem-node) version 0.9.0a1 contains a timestamp-handling mismatch in federation peer-token validation that can cause valid peer tokens to be incorrectly treated as expired. This affects the availability and reliability of authenticated federation flows on nodes using federation peer authentication paths. The issue is fixed in 0.9.0a2, which uses the canonical millisecond-based validation path.

CVSS 4.0 · 7.1 High EPSS < 1% KEV · Not listed

Vendors

Eidetic-labs

Products

Stigmem

CVE-2026-86080

n8n: GitHub Trigger 422 Reuse Path Skips Webhook Secret Storage, Causing Signature Verification to Fail-Open

n8n is an open source workflow automation platform. Prior to 1.123.76, 2.37.7, and 2.38.2, the GitHub Trigger generated a webhook secret but discarded it when GitHub returned HTTP 422 and the node reused an existing webhook. Workflow static data then retained webhookId without webhookSecret, and X-Hub-Signature-256 verification accepted deliveries without a stored secret. The affected logic includes packages/nodes-base/nodes/Github/GithubTriggerHelpers.ts and the 422 webhook reuse path. This issue is fixed in versions 1.123.76, 2.37.7 and 2.38.2.

CVSS 4.0 · 6.3 Medium EPSS < 1% KEV · Not listed

Vendors

N8n

Products

N8n

CVE-2026-46728

FIT Signature Verification Bypass in U‑Boot

Das U-Boot before 2026.04 allows FIT (Flat Image Tree) signature verification bypass because hashed-nodes is omitted from a hash.

CVSS 3.1 · 8.2 High EPSS < 1% KEV · Not listed

Vendors

Denx

Products

U-boot

CVE-2026-33243

barebox: FIT Signature Verification Bypass Vulnerability

barebox is a bootloader. In barebox from version 2016.03.0 to before version 2026.03.1 (and the corresponding backport to 2025.09.3), an attacker could exploit a FIT signature verification vulnerability to trick the bootloader into booting different images than those that were verified as part of a signed configuration. mkimage(1) sets the hashed-nodes property of the FIT signature node to list which nodes of the FIT were hashed as part of the signing process as these will need to be verified later on by the bootloader. However, hashed-nodes itself is not part of the hash and could therefore be modified to allow booting different images than those that have been verified. This issue has been patched in barebox versions 2026.03.1 and backported to 2025.09.3.

CVSS 3.1 · 8.3 High EPSS < 1% KEV · Not listed

Vendors

Barebox Pengutronix

Products

Barebox Barebox