CVE-2026-50767

A stored cross-site scripting XSS vulnerability in the item type administration page of Koha Library Management System 0 through 25.11 versions allow an authenticated remote attacker with administrator privileges to inject arbitrary web scripts via the item type check-in message field checkinmsg...

CVE-2026-2053: Server-Side Request Forgery (SSRF)

The WSO2 API Manager's message flow component, when processing WS-Addressing headers, does not sufficiently validate or restrict user-controlled input within these headers. This omission allows an attacker to manipulate WS-Addressing headers to specify arbitrary destinations for server-initiated...

CVE-2026-50767

The Koha Library Management System (versions 0 through 25.11) contains a stored cross-site scripting (XSS) vulnerability in the item type administration page. An authenticated remote attacker with administrator privileges can inject arbitrary web scripts by exploiting the checkinmsg (item type ch...

kernel: ipv6: icmp: clear skb2->cb[] in ip6_err_gen_icmpv6_unreach()

A flaw was found in the Linux kernel's IPv6 ICMP error generation. A remote attacker could send a specially crafted IPv4 ICMP error packet with a Common Internet Protocol Security Option CIPSO IP option. This could lead to incorrect handling of packet control block data when generating an IPv6 IC...

CVE-2026-49943

A flaw was found in the BIRD Internet Routing Daemon. An established BGP Border Gateway Protocol peer can send a specially crafted BGP UPDATE message containing an unusually long ASPATH Autonomous System Path attribute. When a BIRD filter evaluates an AS path mask expression, this can lead to a...

GO-2026-5599 Mailpit: Path traversal & arbitrary file write in mailpit dump --http via attacker-controlled message IDs in github.com/axllent/mailpit

Mailpit: Path traversal & arbitrary file write in mailpit dump --http via attacker-controlled message IDs in github.com/axllent/mailpit...

Directory Traversal

Overview Affected versions of this package are vulnerable to Directory Traversal through the dump process when handling attacker-controlled message IDs via the --http interface. An attacker can write arbitrary files to the filesystem by supplying crafted message IDs that exploit path traversal...

GO-2026-5442 Mattermost doesn't enforce the PostEditTimeLimit on non-message post fields in github.com/mattermost/mattermost-server

Mattermost doesn't enforce the PostEditTimeLimit on non-message post fields in github.com/mattermost/mattermost-server...

GO-2026-5424 klever-go: Unbounded goroutine spawn on direct-message ingress enables peer-driven DoS in github.com/klever-io/klever-go

klever-go: Unbounded goroutine spawn on direct-message ingress enables peer-driven DoS in github.com/klever-io/klever-go...

CVE-2026-8720

wcBlake2bHmacFinal and wcBlake2sHmacFinal discard the message when the key length exceeds the block size, producing a MAC that is independent of the input. When the supplied key is longer than the BLAKE2 block size the key-hashing branch reinitialized the running hash state, discarding the...

CVE-2026-55962

TLS 1.3 post-handshake authentication PHA issue where a server could accept a client's Finished message without the client having sent a Certificate and CertificateVerify. The post-handshake-auth exemption that allows an empty/absent peer certificate was only intended for the initial handshake, b...

CVE-2026-8720

wcBlake2bHmacFinal and wcBlake2sHmacFinal discard the message when the key length exceeds the block size, producing a MAC that is independent of the input. When the supplied key is longer than the BLAKE2 block size the key-hashing branch reinitialized the running hash state, discarding the...

UBUNTU-CVE-2026-8720

wcBlake2bHmacFinal and wcBlake2sHmacFinal discard the message when the key length exceeds the block size, producing a MAC that is independent of the input. When the supplied key is longer than the BLAKE2 block size the key-hashing branch reinitialized the running hash state, discarding the...

GHSA-Q2H6-GHWM-5QM8 MessagePack-CSharp: InterfaceLookupFormatter bypasses collision-resistant comparer settings

Summary InterfaceLookupFormatter constructs an internal Dictionary with the default equality comparer instead of the security-aware comparer supplied by options.Security.GetEqualityComparer. Other hash-based collection formatters use the security-aware comparer when...

MessagePack-CSharp: Multi-dimensional array formatters allocate from unchecked dimensions

Summary MessagePack-CSharp's multi-dimensional array formatters read dimension lengths directly from the payload and allocate T,, T,,, or T,,, before validating that the dimension product matches the encoded element count. The formatter reads a guarded element array header, but allocation of the...

Allocation of Resources Without Limits or Throttling

Overview MessagePack is a MessagePackMsgPack Serializer for C.NET, .NET Core, Unity, Xamarin. Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling in the Deserialize function. An attacker can cause excessive memory allocation or process...

EUVD-2026-38382

MessagePack-CSharp: Unity unsafe blit formatter allocates from unbounded byte length...

CVE-2026-8720

wcBlake2bHmacFinal and wcBlake2sHmacFinal discard the message when the key length exceeds the block size, producing a MAC that is independent of the input. When the supplied key is longer than the BLAKE2 block size the key-hashing branch reinitialized the running hash state, discarding the...

CVE-2026-8720 HMAC-BLAKE2 final discards message when key length exceeds block size

wcBlake2bHmacFinal and wcBlake2sHmacFinal discard the message when the key length exceeds the block size, producing a MAC that is independent of the input. When the supplied key is longer than the BLAKE2 block size the key-hashing branch reinitialized the running hash state, discarding the...

CVE-2026-8720

CVE-2026-8720 affects wolfSSL’s HMAC-BLAKE2 APIs (wc_Blake2bHmacFinal, wc_Blake2sHmacFinal). When the supplied key length exceeds the BLAKE2 block size, the key-hashing branch reinitializes the running hash state and discards accumulated message data, causing the MAC to depend only on the key and...