zeek -- potential DoS vulnerabilities

Tim Wojtulewicz of Corelight reports: A series of DNS messages containing long DNS compression chains can cause Zeek to spend a long time processing packets and potentially crash. Due to the fact that these packets can be received from remote hosts, this is a DoS risk. A specially-crafted LDAP...

ejabberd -- Potential DDoS in XML Parser

ejabberd team reports: This release adds new options that limit max memory used by XML parser used to process XMPP payloads, to prevent potential Denial of Service attack. The default values for pre-auth provide sufficient protection for ejabberd against non-authenticated users on c2s and s2s, so...

OpenVPN -- server DOS and data leak in TLS handshake vulnerabilities

Gert Doering reports: Security fixes in 2.7.2 fix race condition in TLS handshake that could lead to leaking of packet data from a previous handshake under specific circumstances CVE-2026-40215 fix server termination on receiving a suitably malformed packet with a valid tls-crypt-v2 key...

lcms2 -- Integer overflow

https://github.com/mm2/Little-CMS/commit/da6110b1d14abc394633a388209abd5ebedd7ab0 reports: Little CMS lcms2 through 2.18 has an integer overflow in CubeSize in cmslut.c because the overflow check is performed after the multiplication...

OpenEXR -- several integer overflow vulnerabilities

Cary Phillips reports: OpenEXR 3.4.10 is a patch release that addresses the following security vulnerabilities: CVE-2026-39886 HTJ2K Signed Integer Overflow in htundoimpl CVE-2026-40244 Integer overflow in DWA setupChannelData planarUncRle pointer arithmetic missed variant of CVE-2026-34589...

(lib)expat -- Insufficient entropy

https://github.com/libexpat/libexpat/pull/1183 reports: libexpat before 2.8.0 uses insufficient entropy, and thus hash flooding can occur via a crafted XML document...

devel/ocaml-opam -- CWE-24 Path Traversal: '../filedir'

https://github.com/ocaml/opam/releases/tag/2.5.1 reports: In OCaml opam before 2.5.1, a .install field containing a destination filepath can use ../ to reach a parent directory. Reported by Andrew Nesbitt...

chromium -- security fixes

Chrome Releases reports: This update includes 31 security fixes: 490170083 Critical CVE-2026-6296: Heap buffer overflow in ANGLE. Reported by cinzinga on 2026-03-05 493628982 Critical CVE-2026-6297: Use after free in Proxy. Reported by heapracer on 2026-03-17 495700484 Critical CVE-2026-6298: Hea...

xorg-server -- Multiple vulnerabilities

X.Org project reports: Multiple issues have been found in the X server and Xwayland implementations published by X.Org for which we are releasing security fixes for in xorg-server-21.1.22 and xwayland-24.1.10...

xwayland -- Multiple vulnerabilities

X.Org project reports: Multiple issues have been found in the X server and Xwayland implementations published by X.Org for which we are releasing security fixes for in xorg-server-21.1.22 and xwayland-24.1.10...

PHP Composer -- Multiple vulnerabilities

Composer project reports: Fixed command injection via malicious Perforce reference GHSA-gqw4-4w2p-838q / CVE-2026-40261 Fixed command injection via malicious Perforce repository definition GHSA-wg36-wvj6-r67p / CVE-2026-40176...

dash -- arith: INTMAX_MIN / -1 overflow

https://git.kernel.org/pub/scm/utils/dash/dash.git/commit/?id=0034bfe185d3d875cebace8cb3ca5c9dabf9e0f3 reports: Division and remainder currently guard against division by zero, but not against the signed overflow case INTMAXMIN / -1. On affected systems this can trigger SIGFPE during arithmetic...

Vaultwarden -- Multiple vulnerabilities

The Vaultwarden project reports: GHSA-937x-3j8m-7w7p Unconfirmed Owner Can Purge Entire Organization Vault. GHSA-569v-845w-g82p Cross-Org Group Binding Enables Unauthorized Read And Write Access Into Another Organization GHSA-6j4w-g4jh-xjfx Refresh tokens not invalidated on security stamp rotatio...

Python -- use-after-free vulnerability in decompressors under memory pressure

Seth Larson reports: There is a CRITICAL severity vulnerability affecting CPython. Use-after-free UAF was possible in the lzma.LZMADecompressor, bz2.BZ2Decompressor, and gzip.GzipFile when a memory allocation fails with a MemoryError and the decompression instance is re-used. This scenario can be...

Gitlab -- vulnerabilities

Gitlab reports: Exposed Method issue in websocket connections impacts GitLab CE/EE Denial of Service issue in Terraform state lock API impacts GitLab CE/EE Denial of Service issue in GraphQL API impacts GitLab CE/EE Denial of Service issue in CSV import impacts GitLab CE/EE Denial of Service issu...

Mozilla -- Memory safety bugs

https://bugzilla.mozilla.org/buglist.cgi?bugid=2025475%2C2025477 reports: Memory safety bugs present in Firefox 149.0.1 and Thunderbird 149.0.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary...

Mozilla -- Incorrect boundary conditions, integer overflow

https://bugzilla.mozilla.org/showbug.cgi?id=2017867 reports: Incorrect boundary conditions, integer overflow in the Graphics: Text component...

Mozilla -- Memory safety bugs

https://bugzilla.mozilla.org/buglist.cgi?bugid=2022369%2C2023026%2C2023545%2C2023555%2C2023958%2C2025422%2C2025468%2C2025492%2C2025505 reports: Memory safety bugs present in Firefox ESR 140.9.0, Thunderbird ESR 140.9.0, Firefox 149.0.1 and Thunderbird 149.0.1. Some of these bugs showed evidence o...

Mozilla -- Incorrect boundary conditions

https://bugzilla.mozilla.org/showbug.cgi?id=2022554 reports: Incorrect boundary conditions in the Graphics: WebGPU component...

OpenSSL -- Multiple vulnerabilities

The OpenSSL project reports: Seven vulnerabilities in OpenSSL library. Highest classification Moderate...

Mozilla -- Memory safety bugs

Mozilla reports: Memory safety bugs present in Firefox ESR, Firefox ESR , Thunderbird ESR, and Thunderbird. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code...

chromium -- security fixes

Chrome Releases reports: This update includes multiple security fixes: Critical: CVE-2026-5858: Heap buffer overflow in WebML. CVE-2026-5859: Integer overflow in WebML. High: CVE-2026-5860: Use after free in WebRTC. CVE-2026-5861: Use after free in V8. CVE-2026-5862: Inappropriate implementation ...

gstreamer1 -- multiple vulnerabilities

The GStreamer project reports multiple security vulnerabilities fixed in the 1.28.2 release: Several security vulnerabilities were addressed, including: H.264 video parser NULL pointer dereference when freeing SPS/MVC data. Integer overflows in the AV1 LEB128 parser, H.266/VVC video parser, and W...

python -- more webbrowser.open() command injection vulnerabilities

Seth Larson reports: CVE-2026-4786 Incomplete mitigation of CVE-2026-4519, %action expansion for command injection to webbrowser.open There is a HIGH severity vulnerability affecting CPython. Mitgation of CVE-2026-4519 was incomplete. If the URL contained "%action" the mitigation could be bypasse...

py-strawberry-graphql -- Multiple vulnerabilities

The Strawberry GraphQL project reports: Strawberry up until version 0.312.3 is vulnerable to an authentication bypass on WebSocket subscription endpoints. The legacy graphql-ws subprotocol handler does not verify that a 'connectioninit' handshake has been completed before processing start...

chromium -- security fixes

Chrome Releases reports: This update includes 21 security fixes: 493952652 High CVE-2026-5273: Use after free in CSS. Reported by Anonymous on 2026-03-18 491732188 High CVE-2026-5272: Heap buffer overflow in GPU. Reported by inspector-ambitious on 2026-03-11 488596746 High CVE-2026-5274: Integer...

Mbed TLS -- vulnerabilities

https://mbed-tls.readthedocs.io/en/latest/security-advisories/ reports: Client impersonation while resuming a TLS 1.3 session CVE-2026-34873 Entropy on Linux can fall back to /dev/urandom CVE-2026-34871 PSA random generator cloning CVE-2026-25835 Compiler-induced constant-time violations...

DNSdist -- vulnerabilities

https://www.dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2026-02.html reports: CVE-2026-0396: HTML injection in the web dashboard CVE-2026-0397: Information disclosure via CORS misconfiguration CVE-2026-24028: Out-of-bounds read when parsing DNS packets via Lua CVE-2026-24029: DN...

MongoDB Server -- CWE-617: Reachable Assertion

https://jira.mongodb.org/browse/SERVER-101758 reports: A user with access to the cluster with a limited set of privilege actions can trigger a crash of amongod process during the limited and unpredictable window when the cluster is being promoted from a replica set to a sharded cluster. This may...

Roundcube -- SVG Attribute Bypass

The Roundcube project reports:...

Grafana -- Query resampling can cause unbounded memory allocations

https://grafana.com/security/security-advisories/cve-2026-27879 reports: A resample query can be used to trigger out-of-memory crashes in Grafana...

Grafana -- Public dashboards discloses all direct mode datasources

https://grafana.com/security/security-advisories/cve-2026-27877 reports: When using public dashboards and direct data-sources, all direct data-sources' passwords are exposed despite not being used in dashboards. No passwords of proxied data-sources are exposed. We encourage all direct data-source...

Grafana -- Grafana Testdata datasource can issue unbounded memory allocations

https://grafana.com/security/security-advisories/cve-2026-28375 reports: A testdata data-source can be used to trigger out-of-memory crashes in Grafana...

Grafana -- OpenFeature evaluation API reads input data with no bounds

https://grafana.com/security/security-advisories/cve-2026-27880 reports: The OpenFeature feature toggle evaluation endpoint reads unbounded values into memory, which can cause out-of-memory crashes...

Grafana -- RCE on Grafana via sqlExpressions

https://grafana.com/security/security-advisories/cve-2026-27876 reports: A chained attack via SQL Expressions and a Grafana Enterprise plugin can lead to a remote arbitrary code execution impact RCE. This is enabled by a feature in Grafana OSS, so all users are always recommended to update to avo...

openexr -- multiple vulnerabilities

Cary Phillips reports: OpenEXR 3.4.9 addresses the following CVEs: CVE-2026-34589 DWA Lossy Decoder Heap Out-of-Bounds Write CVE-2026-34588 Signed 32-bit Overflow in PIZ Decoder Leads to OOB Read/Write CVE-2026-34380 Signed integer overflow undefined behavior in undopxr24impl may allow bounds-che...

Grafana -- Grafana MSSQL Data Source Plugin: Restriction Bypass Leading to OOM DoS

https://grafana.com/security/security-advisories/cve-2026-33375 reports: The Grafana MSSQL data source plugin contains a logic flaw that allows a low-privileged user Viewer to bypass API restrictions and trigger a catastrophic Out-Of-Memory OOM memory exhaustion, crashing the host container...

traefik -- Multiple vulnerabilities

The traefik project releases a new version addressing multiple CVEs: CVE-2026-33433 BasicAuth/DigestAuth Identity Spoofing via Non-Canonical headerField CVE-2026-33186 authorization bypass via missing leading slash in :path...

Gitlab -- vulnerabilities

Gitlab reports: Improper Handling of Parameters issue in Jira Connect installations impacts GitLab CE/EE Cross-Site Request Forgery issue in GLQL API impacts GitLab CE/EE HTML Injection in vulnerability report impacts GitLab EE Denial of Service issue in GraphQL API impacts GitLab CE/EE Improper...

FreeBSD -- Remote code execution via RPCSEC_GSS packet validation

Problem Description: Each RPCSECGSS data packet is validated by a routine which checks a signature in the packet. This routine copies a portion of the packet into a stack buffer, but fails to ensure that the buffer is sufficiently large, and a malicious client can trigger a stack overflow. Notabl...

dnsmasq -- multiple vulnerabilities

Simon Kelley reports: Today, 11th May 2026 CERT is releasing a set of six CVEs for serious security vulnerabilities in dnsmasq. These are all long-standing bugs which apply to pretty much all non-ancient versions. Christopher Cullen and Molly Jaconski write, in Vulnerability Note VU471747:...

FreeBSD -- TCP: remotely exploitable DoS vector (mbuf leak)

Problem Description: When a challenge ACK is to be sent tcprespond constructs and sends the challenge ACK and consumes the mbuf that is passed in. When no challenge ACK should be sent the function returns and leaks the mbuf. Impact: If an attacker is either on path with an established TCP...

FreeBSD -- pf silently ignores certain rules

Problem Description: A regression in the way hashes were calculated caused rules containing the address range syntax x.x.x.x - y.y.y.y that only differ in the address ranges involved to be silently dropped as duplicates. Only the first of such rules is actually loaded into pf. Ranges expressed...

FreeBSD -- Remote denial of service via null pointer dereference

Problem Description: On a system exposing an NVMe/TCP target, a remote client can trigger a kernel panic by sending a CONNECT command for an I/O queue with a bogus or stale CNTLID. Impact: An attacker with network access to the NVMe/TCP target can trigger an unauthenticated Denial of Service...

Mozilla -- Multiple vulnerabilities

CVE-2026-4729: Memory safety bugs CVE-2026-4728: Spoofing issue in the Privacy: Anti-Tracking component. CVE-2026-4727: Denial-of-service in the Libraries component in NSS. CVE-2026-4726: Denial-of-service in the XML component. CVE-2026-4725: Sandbox escape due to use-after-free in the Graphics:...

Mozilla -- Multiple vulnerabilities

CVE-2026-4688: Sandbox escape due to use-after-free in Disability Access APIs. CVE-2026-4695: Incorrect boundary conditions in the Audio/Video: Web Codecs component. CVE-2026-4697: Incorrect boundary conditions in the Audio/Video: Web Codecs component. CVE-2026-4700: Mitigation bypass in the...

(lib)tiff -- Integer Overflow or Wraparound

PrymEvol and Quang Luong reports: A flaw was found in the libtiff library. A remote attacker could exploit a signed integer overflow vulnerability in the putcontig8bitYCbCr44tile function by providing a specially crafted TIFF file. This flaw can lead to an out-of-bounds heap write due to incorrec...

Mozilla -- Multiple vulnerabilities

CVE-2026-4721: Memory safety bugs. Potential arbitrary code execution. CVE-2026-4709: Incorrect boundary conditions in the Audio/Video: GMP component. CVE-2026-4707: Incorrect boundary conditions in the Graphics: Canvas2D component. CVE-2026-4706: Incorrect boundary conditions in the Graphics:...

Python -- configparser vulnerable to excessive CPU use

Stan Ulbrych reports: configparser.RawConfigParser.OPTCRE,OPTCRENV regexes are vulnerable to quadratic backtracking...

chromium -- security fixes

Chrome Releases reports: This update includes 8 security fixes: 485397284 High CVE-2026-4673: Heap buffer overflow in WebAudio. Reported by c6eed09fc8b174b0f3eebedcceb1e792 on 2026-02-18 488188166 High CVE-2026-4674: Out of bounds read in CSS. Reported by Syn4pse on 2026-02-27 488270257 High...