New Passkey Attacks Can Recover Synced Private Keys or Bypass Phishing-Resistant MFA

Three separate research efforts last week demonstrated ways to defeat passkey protections without breaking the cryptography they rest on. Passkeys are designed to replace reusable passwords and resist phishing. The attacks instead reused signed authentication material that Windows had exposed,...

CVE-2026-19278

CVE-2026-19278 concerns StackRox/RHACS Central. The flaw lies in the Auth Machine-to-Machine (M2M) token exchange where, during M2M role mapping, unanchored regular expressions are used to match claim values. This allows an attacker with a valid OpenID Connect (OIDC) token whose claim value is a ...

CVE-2026-68376

The CVE-2026-68376 issue concerns the Linux kernel SCTP implementation. A miscalculated auth_hmacs array size in struct sctp_cookie caused the HMAC-ALGO parameter (struct sctp_paramhdr plus N HMAC identifiers) to overflow the buffer when four identifiers are configured, leading to copying beyond ...

CVE-2026-68304

This CVE (CVE-2026-68304) affects the Linux kernel’s wireless driver brcmfmac (Broadcom brcm80211) and relates to a call trace warning triggered by 802.1X-SHA256 during PMK handling. The fix involves configuring wpa_supplicant/brcmfmac usage to enable 1X authentication support by setting "use_fws...

EUVD-2026-55405

In the Linux kernel, the following vulnerability has been resolved: wifi: brcmfmac: fix 802.1X-SHA256 call trace warning Based on wpaauth as 1x256 mode, need to set up "usefwsup" with BRCMFPROFILEFWSUP1X. Or it will happen trace warning when call brcmfcfg80211setpmk. 4481.831101 ------------ cut...

CVE-2026-68300 sctp: auth: verify auth requirement when auth_chunk is NULL

In the Linux kernel, the following vulnerability has been resolved: sctp: auth: verify auth requirement when authchunk is NULL sctpauthchunkverify returns true unconditionally when chunk-authchunk is NULL, silently skipping authentication. This is incorrect when: 1. skbclone failed in the BH...

CVE-2026-68300 sctp: auth: verify auth requirement when auth_chunk is NULL

In the Linux kernel, the following vulnerability has been resolved: sctp: auth: verify auth requirement when authchunk is NULL sctpauthchunkverify returns true unconditionally when chunk-authchunk is NULL, silently skipping authentication. This is incorrect when: 1. skbclone failed in the BH...

EUVD-2026-55401

In the Linux kernel, the following vulnerability has been resolved: sctp: auth: verify auth requirement when authchunk is NULL sctpauthchunkverify returns true unconditionally when chunk-authchunk is NULL, silently skipping authentication. This is incorrect when: 1. skbclone failed in the BH...

CVE-2026-68300

Summary: CVE-2026-68300 in the Linux kernel concerns SCTP authentication. The function sctp_auth_chunk_verify() incorrectly returns true when auth_chunk is NULL, allowing authentication to be bypassed under certain conditions (e.g., skb_clone() failure in BH path or absence of an AUTH before COOK...

CVE-2026-72691 OpenSignLabs opensignserver - Authentication Bypass

An authentication bypass vulnerability in OpenSignLabs opensignserver through 2.37.0 allows an unauthenticated remote attacker to mint MASTERKEY-signed file access tokens for arbitrary stored files via the getsignedurl Parse cloud function. The function skips its isAuthenticated check whenever an...

CVE-2026-72691

OpenSignLabs opensignserver (up to version 2.37.0) has an authentication bypass vulnerability. An unauthenticated remote attacker can mint MASTER_KEY-signed file access tokens for arbitrary stored files via the getsignedurl cloud function. The function bypasses its isAuthenticated check when any ...

EUVD-2026-55531

An authentication bypass vulnerability in OpenSignLabs opensignserver through 2.37.0 allows an unauthenticated remote attacker to mint MASTERKEY-signed file access tokens for arbitrary stored files via the getsignedurl Parse cloud function. The function skips its isAuthenticated check whenever an...

CVE-2026-72691

An authentication bypass vulnerability in OpenSignLabs opensignserver through 2.37.0 allows an unauthenticated remote attacker to mint MASTERKEY-signed file access tokens for arbitrary stored files via the getsignedurl Parse cloud function. The function skips its isAuthenticated check whenever an...

CVE-2026-72691 OpenSignLabs opensignserver - Authentication Bypass

An authentication bypass vulnerability in OpenSignLabs opensignserver through 2.37.0 allows an unauthenticated remote attacker to mint MASTERKEY-signed file access tokens for arbitrary stored files via the getsignedurl Parse cloud function. The function skips its isAuthenticated check whenever an...

CVE-2026-72688 OpenSignLabs opensignserver - Missing Authentication for Critical Function

A missing authentication vulnerability in OpenSignLabs opensignserver through 2.37.0 allows an unauthenticated remote attacker to read arbitrary stored documents via the fileupload Parse cloud function. The function mints MASTERKEY-signed file access tokens for any caller-supplied URL without...

CVE-2026-68130 ksmbd: defer destroy_previous_session() until after NTLM authentication

In the Linux kernel, the following vulnerability has been resolved: ksmbd: defer destroyprevioussession until after NTLM authentication In ntlmauthenticate, destroyprevioussession is called using a user pointer resolved from the client-supplied NTLM blob username field before the NTLMv2 response ...

EUVD-2026-55511

In the Linux kernel, the following vulnerability has been resolved: ksmbd: defer destroyprevioussession until after NTLM authentication In ntlmauthenticate, destroyprevioussession is called using a user pointer resolved from the client-supplied NTLM blob username field before the NTLMv2 response ...

CVE-2026-68130

CVE-2026-68130 (ksmbd, Linux kernel) : The vulnerability arises in ntlm_authenticate() where destroy_previous_session() is invoked using a pre-authentication user pointer derived from the client NTLM blob, before NTLMv2 response validation. An attacker could set the NTLM blob username to a victim...

CVE-2026-68130 ksmbd: defer destroy_previous_session() until after NTLM authentication

In the Linux kernel, the following vulnerability has been resolved: ksmbd: defer destroyprevioussession until after NTLM authentication In ntlmauthenticate, destroyprevioussession is called using a user pointer resolved from the client-supplied NTLM blob username field before the NTLMv2 response ...

CVE-2026-68125

CVE-2026-68125 (Linux kernel, mac802154 llsec) : A logic flaw in llsec_do_decrypt_auth() computes assoclen as datalen - authlen without validating that the frame carries at least authlen payload bytes. This allows an attacker-controlled IEEE 802.15.4 frame with payload shorter than the authentica...