dovecot security update

1:2.3.21-19.1 - fix CVE-2026-42006: fix imapparser listcountlimit to actually work RHEL-188477...

Oracle Linux 10 : dovecot (ELSA-2026-41988)

The remote Oracle Linux 10 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2026-41988 advisory. 1:2.3.21-19.1 - fix CVE-2026-42006: fix imapparser listcountlimit to actually work RHEL-188477 Tenable has extracted the preceding description block directly...

EUVD-2026-45731

In the Linux kernel, the following vulnerability has been resolved: usb: typec: ucsi: validate connector number in ucsiconnectorchange The connector number in a UCSI CCI notification is a 7-bit field supplied by the PPM. ucsiconnectorchange uses it to index the ucsi-connector array without checki...

CVE-2026-61455 Grav before 2.0.1 Decompression Bomb via ZipArchiver

Grav before 2.0.1 contains a decompression bomb vulnerability in ZipArchiver::extract that lacks limits on uncompressed size, file count, and nesting depth. Attackers can supply a crafted ZIP archive that expands to fill available disk space, causing denial of service by exhausting storage...

PT-2026-52283

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the RDMA/core component where the cpu id attribute, provided by user space via UVERBS ATTR ALLOC DMAH CPU ID, is passed to the cpumask test cpu function without...

Nerdbank.MessagePack has Inefficient CPU Computation

Impact Applications that call OptionalConverters.WithExpandoObjectConverter and deserialize untrusted data are open to a vulnerability by which an attacker can exploit a On² algorithm to burn an inordinate amount of CPU effort by adding a great many properties to an ExpandoObject, whose Add metho...

CLSA-2026-1779378574 dovecot: Fix of 2 CVEs

CVE-2026-42006: lib-imap: fix listcountlimit to actually count open '' instead of close '', preventing an imap-login memory-exhaustion DoS that bypassed the CVE-2026-27857 fix...

CLSA-2026-1779360036 dovecot: Fix of CVE-2026-42006

CVE-2026-42006: fix imap-login listcountlimit to actually limit open '' characters; the previous fix limited closing '' instead, leaving the bracing memory exhaustion vector open...

CLSA-2026-1778882329 dovecot: Fix of CVE-2026-27857

CVE-2026-27857: improve fix by enforcing listcountlimit on '' openlist instead of '' closelist; the previous fix did not actually limit memory growth from many '' characters...

GHSA-PP6C-GR5W-3C5G python-multipart has Denial of Service via unbounded multipart part headers

Summary python-multipart has a denial of service vulnerability in multipart part header parsing. When parsing multipart/form-data, MultipartParser previously had no limit on the number of part headers or the size of an individual part header. An attacker could send a request with either many...

GHSA-Q3JJ-46PQ-826R OpenClaw's ACP child sessions inherit subagent security envelope constraints

Summary ACP child sessions inherit subagent security envelope constraints. Affected Packages / Versions - Package: openclaw npm - Affected versions: = 2026.4.21 - Fixed version: 2026.4.22 Impact A restricted subagent spawning an ACP child session could fail to carry forward subagent-only...

CVE-2026-23468

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: Limit BO list entry count to prevent resource exhaustion Userspace can pass an arbitrary number of BO list entries via the bonumber field. Although the previous multiplication overflow check prevents out-of-bounds...

CVE-2026-33721

MapServer (CVE-2026-33721) has a heap-buffer-overflow in the SLD parser triggered by a crafted SLD containing more than 100 Threshold elements in a ColorMap/Categorize structure, exploitable by an unauthenticated remote attacker via WMS GetMap with SLD_BODY. Affects versions up to 4.2 prior to 8....

CVE-2026-33349 fast-xml-parser: Entity Expansion Limits Bypassed When Set to Zero Due to JavaScript Falsy Evaluation

fast-xml-parser allows users to process XML from JS object without C/C++ based libraries or callbacks. From version 4.0.0-beta.3 to before version 5.5.7, the DocTypeReader in fast-xml-parser uses JavaScript truthy checks to evaluate maxEntityCount and maxEntitySize configuration limits. When a...

Improper Validation of Specified Quantity in Input

Overview org.webjars.npm:fast-xml-parser is a Validate XML, Parse XML, Build XML without C/C++ based libraries Affected versions of this package are vulnerable to Improper Validation of Specified Quantity in Input in the DocTypeReader component when the maxEntityCount or maxEntitySize configurati...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2025-992380)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-992380 advisory. In the Linux kernel, the following vulnerability has been resolved: bounds: Use the right number of bits for power-of-two CONFIGNRCPUS bitsper rounds up to the next...

CVE-2025-68473 ESF-IDF Has Out-of-Bounds Read in ESP32 Bluetooth SDP Result Handling

ESF-IDF is the Espressif Internet of Things IOT Development Framework. In versions 5.5.1, 5.4.3, 5.3.4, 5.2.6, 5.1.6, and earlier, in the ESP-IDF Bluetooth host stack BlueDroid, the function btadmsdpresult used a fixed-size array uuidlist32MAXUUIDSIZE to store discovered service UUIDs during the...

CVE-2025-68731 accel/amdxdna: Fix an integer overflow in aie2_query_ctx_status_array()

In the Linux kernel, the following vulnerability has been resolved: accel/amdxdna: Fix an integer overflow in aie2queryctxstatusarray The unpublished smatch static checker reported a warning. drivers/accel/amdxdna/aie2pci.c:904 aie2queryctxstatusarray warn: potential user controlled sizeof overfl...

CVE-2025-68731 accel/amdxdna: Fix an integer overflow in aie2_query_ctx_status_array()

In the Linux kernel, the following vulnerability has been resolved: accel/amdxdna: Fix an integer overflow in aie2queryctxstatusarray The unpublished smatch static checker reported a warning. drivers/accel/amdxdna/aie2pci.c:904 aie2queryctxstatusarray warn: potential user controlled sizeof overfl...

SUSE CVE-2025-58186

Despite HTTP headers having a default limit of 1MB, the number of cookies that can be parsed does not have a limit. By sending a lot of very small cookies such as "a=;", an attacker can make an HTTP server allocate a large amount of structs, causing large memory consumption...