CVE-2026-42393

The comparison used for the doveadm password and API key is not fully timing safe and can reveal the length of the configured secret. An attacker with access to the same network as the doveadm service, able to make repeated requests and measure response timing accurately, can learn the length of...

CVE-2026-42392

An attacker that has valid credentials can send an invalid IMAP URLFETCH command, which causes uninitialized memory to be included in the error response returned to the client. Process memory contents can be disclosed to the client, which may include sensitive data. Disable the IMAP URLAUTH...

CVE-2026-42391

An unauthenticated attacker can send an IMAP ID command with a very large number of parameters before logging in, which causes memory and CPU usage to grow disproportionately. The login process can be terminated by the out-of-memory handling, which also terminates all other connections handled by...

CVE-2026-42008

Forwarding information received from a host listed as a trusted proxy is not kept separate from Dovecot's own authentication fields, so a value sent by that host can be injected as an internal authentication field. Any host permitted to act as a trusted proxy can authenticate as any user without...

CVE-2026-42007

An attacker that has valid credentials can use a Sieve script with the editheader extension to trigger a use-after-free in the mail editing code, and to write memory contents beyond the intended buffer into the delivered mail. This causes memory leak and opportunity to do memory corruption during...

CVE-2026-40205

An attacker that holds an OAuth2 token granting only part of the required scopes can authenticate, because when more than one scope is required in the configuration, the remote token validation paths accept a token that carries only one of them, while the local token validation path correctly...

CVE-2026-40204

None None None No publicly available exploits are known...

CVE-2026-40203

When IMAP compression is enabled, the same compression state is reused across responses in a session, so response sizes depend on both attacker-supplied mail and other mail in the same mailbox. An attacker that can send mail to a user and can also observe the sizes of that user's IMAP traffic can...

CVE-2026-40019

An unauthenticated attacker can send a truncated quoted argument to the ManageSieve login process, which makes it spin in an infinite loop consuming CPU. This can cause degradation or denial of service for Sieve script management, and repeated connections can consume all available CPU on the...

CVE-2026-40018

None None None No publicly available exploits are known...

CVE-2026-40017

An attacker that can send mail to a user can craft a message header whose values are chosen to collide in an internal hash table, which makes the IMAP THREAD command consume CPU disproportionate to the size of the message. This is a separate issue from CVE-2026-40014 and is not addressed by that...

CVE-2026-40015

An attacker that has valid credentials can open many connections to the imap-hibernate service and send invalid commands, which can intermittently cause an out-of-bounds read and crash the process. The crash interrupts hibernated IMAP sessions handled by the affected process, which can cause...

CVE-2026-40014

An attacker that can send mail to a user can craft a message header that makes the IMAP THREAD command consume CPU disproportionate to the size of the message. When a mail client issues a THREAD command on the affected mailbox, this can cause degradation or denial of service for IMAP. Monitor...

CVE-2026-40013

An attacker that has valid credentials can submit a Sieve script containing an extreme numeric literal, which causes an out-of-bounds write when the ManageSieve service compiles the script. This causes memory corruption and an observed crash of the ManageSieve process, resulting in denial of...

CVE-2026-33607

An attacker that has valid credentials can use IMAP LIST command to consume CPU. This can cause degradation or denial of service for IMAP. Monitor system for abnormal CPU usage and kill the offending process and lock account. Alternatively install fixed version. No publicly available exploits are...

CVE-2026-33606

Mail content stored by a user can be crafted so that it is interpreted as dsync protocol commands when an administrator later runs dsync with the stream protocol, for example during a migration. Injected commands can modify mailbox state on the destination during migration or replication, includi...

CVE-2026-33605

An unauthenticated attacker can crash the ManageSieve login process by sending a small malformed command before authenticating. If running in high-security mode default for community releases, only the attacker's own connection is terminated. If running in high-performance mode default for Pro...

CVE-2026-33263

When mailmaxuseripconnections is set default 10 and reached, submission-login can crash with epoll panic caused by file descriptor handling issues. If running in high-security mode default for community releases, only the new submission connection gets terminated. If running in high-performance...

CVE-2026-33604

An attacker that can get Dovecot to relay a message, for example through Sieve redirect or submission relay, can use a crafted line ending in the message body to bypass the outbound protection that prevents message content from being interpreted as SMTP commands. A downstream mail server that...

CVE-2026-27852

An attacker that can send mail to a user can craft a message whose headers contain a very large number of email addresses or MIME parameters, which causes excessive memory usage when the message is later parsed. The message is still delivered, but reading it over IMAP can exhaust the memory limit...

CVE-2026-18393

A flaw was found in FFmpeg. The tdscloadcursor function writes beyond the bounds of a heap-allocated buffer when processing crafted TDSC cursor data. A remote attacker could exploit this by supplying a specially crafted video file, potentially leading to a denial of service or arbitrary code...

CVE-2026-80724

In the Linux kernel, the following vulnerability has been resolved: ptp: vmclock: prevent read-only mappings from becoming writable vmclockmiscdevmmap rejects writable mappings of the shared vmclock ABI page with -EROFS, but leaves VMMAYWRITE set. Userspace can map the page read-only and then...

CVE-2026-80723

In the Linux kernel, the following vulnerability has been resolved: of: reservedmem: prevent OOB when too many dynamic regions are defined On boot, fdtscanreservedmem saves each dynamically-placed /reserved-memory subnode into a local array of size MAXRESERVEDREGIONS. If the device tree defines...

CVE-2026-80721

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: ensure no dangling hcon references in isoconn After isoconndel, ISO sockets should not dereference the hcon any more. Currently, clearing isoconn::hcon relies on isoconndel releasing the last reference to the...

CVE-2026-80722

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: validate individual TWT params before driver setup ieee80211processrxtwtaction only partially validates a received S1G TWT setup frame before queueing it. An individual agreement can therefore reach...

CVE-2026-80720

In the Linux kernel, the following vulnerability has been resolved: iomap: add a separate bioset for iomapsplitioend iomapsplitioend can split bios that already come from iomapioendbioset and thus deadlock when the bioset is exhausted. Add a separate bioset to avoid this deadlock. Christian Braun...

CVE-2026-80719

In the Linux kernel, the following vulnerability has been resolved: mm: mglru: fix stale batch updates after memcg reparenting The mglru page table walker batches per-generation size deltas in walk-nrpages while walking page tables without holding the lruvec lock. The resetbatchsize later folds...

CVE-2026-80718

In the Linux kernel, the following vulnerability has been resolved: mm/percpu-km: fix bitmap overflow and accounting in pcpucreatechunk In pcpucreatechunk, nrpages is the total contiguous backing allocation, i.e., nrunits pcpuunitpages, but pcpuchunkpopulated uses it to set chunk-populated, whose...

CVE-2026-80716

In the Linux kernel, the following vulnerability has been resolved: ALSA: pcm: wake linked drain waiters on unlink sndpcmdrain on a linked stream parks an on-stack wait entry on the drained peer's runtime-sleep, and after scheduletimeout removes it only if that peer is still found in the caller's...

CVE-2026-80717

In the Linux kernel, the following vulnerability has been resolved: sctp: validate Adaptation Indication parameter length The Adaptation Layer Indication parameter contains a fixed 32-bit Adaptation Code Point after its parameter header. However, sctpverifyparam accepts a header-only parameter...

CVE-2026-80714

In the Linux kernel, the following vulnerability has been resolved: ipvs: do not propagate one-packet flag to synced conns Synced connections can be created before their destination exists. When the destination is later added, ipvsbinddest copies connection flags from the destination into cp-flag...

CVE-2026-80715

In the Linux kernel, the following vulnerability has been resolved: igc: remove napisynchronize in igcdown When an AFXDP zero-copy application is killed abruptly, the XSK pool is torn down but NAPI keeps polling. igccleanrxirqzc then returns the full budget on every poll, so napicompletedone neve...

CVE-2026-80713

In the Linux kernel, the following vulnerability has been resolved: iouring: preserve task restrictions across exec Per-task restrictions apply to all rings created by a task. Once installed, they should not be dropped across exec. For a task that has used iouring, the exec cancellation path call...

CVE-2026-80712

In the Linux kernel, the following vulnerability has been resolved: spi: spi-qpic-snand: write the feature value before executing SETFEATURE qcomspisendcmdaddr programs NANDFLASHCMD/NANDEXECCMD and submits the descriptors, which makes the controller execute the command immediately. For...

CVE-2026-80710

In the Linux kernel, the following vulnerability has been resolved: s390/dasd: Fix undersized format-check buffer fmtbuffersize in dasdeckdcheckdeviceformat is declared as int, even though one of the multiplicands, sizeofstruct eckdcount, is a sizet. The expression trkcount rptmax sizeofstruct...

CVE-2026-80711

In the Linux kernel, the following vulnerability has been resolved: power: supply: max17040: handle missing status supplier MAX17040 does not report charger state itself, so the driver forwards POWERSUPPLYPROPSTATUS to a supplier power supply. If no supplier is registered,...

CVE-2026-80709

In the Linux kernel, the following vulnerability has been resolved: s390/zcrypt: Fix wrong domain value verification with EP11 CPRBs There is a wrong upper limit check for the domain value when an EP11 CPRB is processed for sending to a crypto card. This check is only active on custom device node...

CVE-2026-80708

In the Linux kernel, the following vulnerability has been resolved: s390/zcrypt: Fix missing mem scrub at clear key import in ccaclr2cipherkey The helper function ipcprbhelper uses internal buffer memory for building and processing CPRBs. After use this buffer was never scrubbed which could lead ...

CVE-2026-80707

In the Linux kernel, the following vulnerability has been resolved: can: j1939: transport: j1939sessionfreshnew: initialize receive buffer Zero the allocated buffer in j1939sessionfreshnew to ensure it contains no residual data. While there is a potential performance impact if users allocate...

CVE-2026-80705

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: check if dml21addphantomplane is successful Verify that the phantom plane was allocated to avoid a later segfault. cherry picked from commit 5adb54abe5a8e82cbff7f8806db30a5f4924329f...

CVE-2026-80706

In the Linux kernel, the following vulnerability has been resolved: can: softing: fwparse: validate firmware record spans fwparse reads a fixed record header, a firmware-provided payload, and a trailing checksum without knowing the end of the firmware blob. A truncated record can therefore make...

CVE-2026-80704

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: use proper context for logging The same as the rest of the code, getssinfofromatombios uses calcpllcs-ctx-logger for logging. But calcpllcs-ctx is initialized only later in calcpllmaxvcoconstruct. Therefore, any...

CVE-2026-80702

In the Linux kernel, the following vulnerability has been resolved: drm/vmwgfx: fix guestmemorydirty bitfield clobbered as size Two sites in vmwgfxresource.c assign boolean literals to res-guestmemorysize, which is an unsigned long allocation-size field; the intended target is the adjacent...

CVE-2026-80703

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Fix missing authorization check in KFDIOCDBGTRAPDISABLE Prevent unauthorized termination of active GPU debug sessions. Previously, users with /dev/kfd access could terminate another process's debug session without...

CVE-2026-80700

In the Linux kernel, the following vulnerability has been resolved: drm/vmwgfx: validate external BO copy bounds for both stride paths vmwexternalbocopy trusts caller-supplied offsets, strides, and heights and operates on imported dma-buf vmaps: - The equal-stride memcpy bound was clamped after...

CVE-2026-80701

In the Linux kernel, the following vulnerability has been resolved: drm/vmwgfx: enforce cursor size limits for MOB cursors vmwcursorplaneatomiccheck bounds cursor width and height only on the legacy update path; the SVGACAP2CURSORMOB path -- the default on modern hosts -- accepts any size. When t...

CVE-2026-80699

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: vgic: Avoid double-deactivate of IRQs in the nested context In the nested state, the physical interrupt has already been deactivated through the HW bit in the LR. The extra deactivation would be harmless but can hit a...

CVE-2026-80697

In the Linux kernel, the following vulnerability has been resolved: erofs: ensure valid fpath for page cache sharing Previously, backing files for page cache sharing were set up with fpath left as NULL only finode was valid. It worked, but a recent mincore fix relies on fpath.mnt and crashes foun...

CVE-2026-80698

In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: fix double free of wq, engine, and group structs The release callbacks for wq, engine, and group devices idxdconfwqrelease, idxdconfenginerelease, idxdconfgrouprelease each call kfree on the enclosing struct. The...

CVE-2026-80695

In the Linux kernel, the following vulnerability has been resolved: hwmon: sht3x Fix unaligned accesses Sashiko reports: In sht3xupdateclient, the 16-bit temperature and humidity values are extracted from a stack-allocated byte array using be16tocpup. The pointers passed to this function are...