ALPINE-CVE-2026-44687

In NLnet Labs Unbound 1.13.2 up to and including 1.25.1, stub or forward zones where the name is below an intermediate labed below a DNSSEC signed zone could be shadowed by the intermediate label's secure NXDOMAIN answer from the parent. This is caused by an off-by-one error in...

CVE-2026-44687

In NLnet Labs Unbound 1.13.2 up to and including 1.25.1, stub or forward zones where the name is below an intermediate labed below a DNSSEC signed zone could be shadowed by the intermediate label's secure NXDOMAIN answer from the parent. This is caused by an off-by-one error in...

CVE-2026-44687

In NLnet Labs Unbound 1.13.2 up to and including 1.25.1, stub or forward zones where the name is below an intermediate labed below a DNSSEC signed zone could be shadowed by the intermediate label's secure NXDOMAIN answer from the parent. This is caused by an off-by-one error in...

UBUNTU-CVE-2026-44687

In NLnet Labs Unbound 1.13.2 up to and including 1.25.1, stub or forward zones where the name is below an intermediate labed below a DNSSEC signed zone could be shadowed by the intermediate label's secure NXDOMAIN answer from the parent. This is caused by an off-by-one error in...

unbound: Unbound: Denial of Service due to 'harden-below-nxdomain' logic bypass

An off-by-one error in Unbound's default harden-below-nxdomain logic can lead to a denial of service. When an intermediate label under a DNSSEC-signed zone is queried, the flaw incorrectly bypasses configured stub or forward zones, disrupting their name resolution...

CVE-2026-50046

In NLnet Labs Unbound 1.15.0 up to and including 1.25.1, the TLS server name used for DNS-over-TLS DoT forwarded queries is tied to a struct's 'servicedquery' lifetime but also referenced by another struct 'waitingtcp'. When the owning struct is jostled out of the mesh while the DoT TCP stream is...

CVE-2026-50046 Possible heap use-after-free in an error path when a DoT forwarded query is jostled out

In NLnet Labs Unbound 1.15.0 up to and including 1.25.1, the TLS server name used for DNS-over-TLS DoT forwarded queries is tied to a struct's 'servicedquery' lifetime but also referenced by another struct 'waitingtcp'. When the owning struct is jostled out of the mesh while the DoT TCP stream is...

EUVD-2026-47672

In NLnet Labs Unbound 1.15.0 up to and including 1.25.1, the TLS server name used for DNS-over-TLS DoT forwarded queries is tied to a struct's 'servicedquery' lifetime but also referenced by another struct 'waitingtcp'. When the owning struct is jostled out of the mesh while the DoT TCP stream is...

CVE-2026-50046

NLnet Labs Unbound 1.15.0–1.25.1 contains a heap use-after-free in the DoT path. The TLS server name for DoT forwarded queries is tied to a serviced_query object that is also referenced by waiting_tcp. If the owning struct is jostled out of the mesh while DoT TCP handshake is in progress, freeing...

CVE-2026-44687

In NLnet Labs Unbound 1.13.2 up to and including 1.25.1, stub or forward zones where the name is below an intermediate labed below a DNSSEC signed zone could be shadowed by the intermediate label's secure NXDOMAIN answer from the parent. This is caused by an off-by-one error in...

CVE-2026-44687 Off-by-one error in 'harden-below-nxdomain' logic can shadow a stub/forward zone by a legitimate parent's NXDOMAIN

In NLnet Labs Unbound 1.13.2 up to and including 1.25.1, stub or forward zones where the name is below an intermediate labed below a DNSSEC signed zone could be shadowed by the intermediate label's secure NXDOMAIN answer from the parent. This is caused by an off-by-one error in...

CVE-2026-44687

CVE-2026-44687 affects NLnet Labs Unbound releases 1.13.2 through 1.25.1. A bug in the default tallied logic for hardened-below-nxdomain can cause a stub or forward zone to be shadowed by a DNSSEC-secure NXDOMAIN answer at the parent when the query name is an intermediate label below a signed zon...

CVE-2026-44687 Off-by-one error in 'harden-below-nxdomain' logic can shadow a stub/forward zone by a legitimate parent's NXDOMAIN

In NLnet Labs Unbound 1.13.2 up to and including 1.25.1, stub or forward zones where the name is below an intermediate labed below a DNSSEC signed zone could be shadowed by the intermediate label's secure NXDOMAIN answer from the parent. This is caused by an off-by-one error in...

CVE-2026-44687

In NLnet Labs Unbound 1.13.2 up to and including 1.25.1, stub or forward zones where the name is below an intermediate labed below a DNSSEC signed zone could be shadowed by the intermediate label's secure NXDOMAIN answer from the parent. This is caused by an off-by-one error in...

CVE-2026-44687

In NLnet Labs Unbound 1.13.2 up to and including 1.25.1, stub or forward zones where the name is below an intermediate labed below a DNSSEC signed zone could be shadowed by the intermediate label's secure NXDOMAIN answer from the parent. This is caused by an off-by-one error in...

i2c: stub: Reject I2C block transfers with invalid length

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PT-2026-63380

Name of the Vulnerable Software and Affected Versions NLnet Labs Unbound versions 1.15.0 through 1.25.1 Description A use-after-free issue exists in the handling of DNS-over-TLS DoT forwarded queries. The TLS server name is tied to the lifetime of the serviced query struct but is also referenced ...

PT-2026-63376

Name of the Vulnerable Software and Affected Versions NLnet Labs Unbound versions 1.13.2 through 1.25.1 Description An off-by-one error exists in the harden-below-nxdomain logic, which is enabled by default. This issue occurs when stub or forward zones are located below an intermediate label that...

SUSE CVE-2026-64191

In the Linux kernel, the following vulnerability has been resolved: i2c: stub: Reject I2C block transfers with invalid length The I2CSMBUSI2CBLOCKDATA case in stubxfer uses data-block0 as the transfer length. The existing check only clamps it to avoid overrunning the chip-words256 register array,...

CVE-2026-64191

A flaw was found in the Linux kernel's i2c-stub driver. A local user with access to the /dev/i2c- device can exploit this vulnerability by issuing an I2C System Management Bus SMBus input/output control ioctl command with a specially crafted block transfer length. This invalid length can cause th...