Alertas de Seguridad de la Información

M Alto vulnerabilidad

26/09/2026

[CVE-2026-100671] Grav is a flat-file CMS. In versions 2.0.19 through 2.0.24 — and in 2.0.0 through 2.0.18 and 1.7.x o…

Grav is a flat-file CMS. In versions 2.0.19 through 2.0.24 — and in 2.0.0 through 2.0.18 and 1.7.x only where content Twig has been explicitly enabled — page content authored by a user holding only page-write permission is rendered through a Twig sandbox that allowlists get_cookie(), which returns any cookie sent with the current request, including the visitor's session cookie. Because the read oc…

nvdaltovulnerabilidad CVSS 8.0 NVD

M Alto vulnerabilidad

26/09/2026

[CVE-2026-100672] The Comments plugin (getgrav/grav-plugin-comments) for Grav CMS through version 1.2.10 registers an …

The Comments plugin (getgrav/grav-plugin-comments) for Grav CMS through version 1.2.10 registers an admin handler that returns comment data as JSON without any authentication check. The handler branches on isAdmin(), which only indicates that the admin service is registered on the current route rather than that the visitor is authenticated, and it echoes the JSON and calls exit() during the plugin…

nvdaltovulnerabilidad CVSS 7.5 NVD

M Alto vulnerabilidad

26/09/2026

[CVE-2026-100661] Netty's HTTP/3 codec (io.netty:netty-codec-http3) versions 4.2.0.Final through 4.2.17.Final contain …

Netty's HTTP/3 codec (io.netty:netty-codec-http3) versions 4.2.0.Final through 4.2.17.Final contain a denial-of-service vulnerability in the QPACK prefixed-integer decoder (QpackUtil.decodePrefixedInteger), which does not bound the number of continuation bytes it will process. A remote, unauthenticated peer can open a QPACK unidirectional stream (type 0x02 encoder or 0x03 decoder) and send a first…

nvdaltovulnerabilidad CVSS 7.5 NVD

M Alto vulnerabilidad

26/09/2026

[CVE-2026-100662] Netty's HTTP/3 codec (io.netty:netty-codec-http3) versions 4.2.0.Final through 4.2.17.Final contain …

Netty's HTTP/3 codec (io.netty:netty-codec-http3) versions 4.2.0.Final through 4.2.17.Final contain an uncontrolled resource consumption vulnerability in the QPACK encoder-stream instruction decoder (QpackEncoderHandler, installed on the peer-initiated unidirectional QPACK encoder stream, type 0x02). The handler accepts an attacker-declared string-literal length of up to Integer.MAX_VALUE (~2 GiB)…

nvdaltovulnerabilidad CVSS 7.5 NVD

M Alto vulnerabilidad

26/09/2026

[CVE-2026-100663] Netty's HTTP/3 codec (io.netty:netty-codec-http3) from 4.2.2.Final through 4.2.17.Final does not spe…

Netty's HTTP/3 codec (io.netty:netty-codec-http3) from 4.2.2.Final through 4.2.17.Final does not special-case HTTP/1 CONNECT authority-form request-targets when converting HTTP/1 messages to HTTP/3 in HttpConversionUtil.toHttp3Headers. The authority-form target (e.g., "CONNECT trusted.example:443") is parsed as a URI, so its host is emitted as :scheme, :path is set to "/", and the HTTP/1 Host head…

nvdaltovulnerabilidad CVSS 7.5 NVD

M Alto vulnerabilidad

26/09/2026

[CVE-2026-100664] Netty's HTTP/3 codec (io.netty:netty-codec-http3) versions 4.2.2.Final through 4.2.17.Final builds t…

Netty's HTTP/3 codec (io.netty:netty-codec-http3) versions 4.2.2.Final through 4.2.17.Final builds the HTTP/3 :authority pseudo-header from the HTTP/1 Host header before considering the authority of an absolute-form HTTP/1 request-target. In HttpConversionUtil.toHttp3Headers(HttpMessage, boolean) — reached via Http3FrameToHttpObjectCodec(false) — a non-empty Host header takes precedence over the r…

nvdaltovulnerabilidad CVSS 7.5 NVD

M Alto vulnerabilidad

26/09/2026

[CVE-2026-100665] Netty versions from 4.2.11.Final before 4.2.18.Final contain an incomplete hostname verification fix…

Netty versions from 4.2.11.Final before 4.2.18.Final contain an incomplete hostname verification fix in the QUIC certificate verification path when using a plain X509TrustManager. The BoringSSLCertificateVerifyCallback discards the SSLEngine for plain trust managers, preventing endpoint identification from running even when HTTPS verification is configured. Attackers on the network path can presen…

nvdaltovulnerabilidad CVSS 7.5 NVD

M Alto vulnerabilidad

26/09/2026

[CVE-2026-100666] Netty's HttpServerCodec (io.netty:netty-codec-http) in versions 4.2.0.Final through 4.2.16.Final and…

Netty's HttpServerCodec (io.netty:netty-codec-http) in versions 4.2.0.Final through 4.2.16.Final and in versions up to and including 4.1.136.Final pairs each outbound response with an inbound request by calling pollMethod() once per response, including for 1xx informational responses. If a client pipelines an HTTP/1.1 GET carrying an Expect: 100-continue header followed by a HEAD request, the 100 …

nvdaltovulnerabilidad CVSS 7.3 NVD

M Alto vulnerabilidad

26/09/2026

[CVE-2026-100655] Netty (io.netty:netty-codec-http) versions up to and including 4.1.137.Final and from 4.2.0.Final th…

Netty (io.netty:netty-codec-http) versions up to and including 4.1.137.Final and from 4.2.0.Final through 4.2.17.Final accept an unlimited number of concurrent remote-initiated SPDY streams: SpdySessionHandler defaults localConcurrentStreams to Integer.MAX_VALUE and exposes no API to change it. A remote peer that opens a SPDY connection and sends millions of SYN_STREAM frames with FLAG_FIN=0 cause…

nvdaltovulnerabilidad CVSS 7.5 NVD

M Alto vulnerabilidad

26/09/2026

[CVE-2026-100656] Netty (io.netty:netty-codec-http) contains an unbounded per-connection queue growth flaw in HttpServ…

Netty (io.netty:netty-codec-http) contains an unbounded per-connection queue growth flaw in HttpServerCodec. The codec tracks the HTTP method of each still-unanswered pipelined request; the first 32 entries are bit-packed into a single long, but every additional entry is appended to methodOverflowQueue, an ArrayDeque with no size limit and no rejection path. A remote, unauthenticated attacker who …

nvdaltovulnerabilidad CVSS 7.5 NVD

M Alto vulnerabilidad

26/09/2026

[CVE-2026-100657] Netty's STOMP codec (io.netty:netty-codec-stomp) contains a ByteBuf leak in StompSubframeDecoder. On…

Netty's STOMP codec (io.netty:netty-codec-stomp) contains a ByteBuf leak in StompSubframeDecoder. Once a frame's declared content-length has been fully read, the decoder allocates a chunk buffer from the channel allocator and parks it in an instance field while waiting for the single NUL byte that terminates the frame. If that byte never arrives, the buffer is never released: the replay Signal thr…

nvdaltovulnerabilidad CVSS 7.5 NVD

M Alto vulnerabilidad

26/09/2026

[CVE-2026-100660] Netty's HTTP/3 codec (io.netty:netty-codec-http3) from 4.2.0.Final through 4.2.17.Final retains unbo…

Netty's HTTP/3 codec (io.netty:netty-codec-http3) from 4.2.0.Final through 4.2.17.Final retains unbounded per-stream QPACK encoder state. QpackEncoder stores a queue and a dynamic-table index tracker for every encoded field section that references the QPACK dynamic table, keyed by the peer-controlled QUIC stream ID, and these entries are released only when the remote decoder sends a Section Acknow…

nvdaltovulnerabilidad CVSS 7.5 NVD

M Alto vulnerabilidad

26/09/2026

[CVE-2026-100641] SiYuan before v3.8.4 does not HTML-escape stored flashcard block content before interpolating it int…

SiYuan before v3.8.4 does not HTML-escape stored flashcard block content before interpolating it into the card-manager list markup. Block content returned by /api/riff/getRiffCards is inserted into a card item template in app/src/card/viewCards.ts and assigned to listElement.innerHTML, so content such as becomes an executable event-handler attribute. Because the SiYua…

nvdaltovulnerabilidad CVSS 8.0 NVD

M Alto vulnerabilidad

26/09/2026

[CVE-2026-100642] SiYuan versions from v2.1.0 before v3.8.4 contain a cross-site request forgery vulnerability in the …

SiYuan versions from v2.1.0 before v3.8.4 contain a cross-site request forgery vulnerability in the CheckAuth lock-screen pass-through branch that grants administrator access to loopback requests without validating Origin headers. Attackers can craft malicious web pages that force victims to terminate the kernel process, read workspace configuration and proxy settings, and trigger administrative a…

nvdaltovulnerabilidad CVSS 7.6 NVD

M Alto vulnerabilidad

26/09/2026

[CVE-2026-100643] SiYuan versions before v3.8.4 fail to properly escape four stored Attribute View values in textarea …

SiYuan versions before v3.8.4 fail to properly escape four stored Attribute View values in textarea elements, allowing authenticated attackers to inject JavaScript by modifying field descriptions, template sources, select option descriptions, or footer calculation templates. Attackers can execute stored JavaScript when other users open affected database menus, and in the Electron desktop app with …

nvdaltovulnerabilidad CVSS 8.0 NVD

M Alto vulnerabilidad

26/09/2026

[CVE-2026-100644] SiYuan before v3.8.4 contains a SQL injection vulnerability in the graph query endpoint where the da…

SiYuan before v3.8.4 contains a SQL injection vulnerability in the graph query endpoint where the dailyNoteSavePath parameter is concatenated into SQL without escaping. Unauthenticated attackers on published sites with auth disabled can inject SQL via UNION SELECT to extract arbitrary database rows from all notebooks.

nvdaltovulnerabilidad CVSS 7.5 NVD

M Alto vulnerabilidad

26/09/2026

[CVE-2026-100645] SiYuan versions 3.7.0 before 3.8.4 contain a stored cross-site scripting vulnerability in gallery an…

SiYuan versions 3.7.0 before 3.8.4 contain a stored cross-site scripting vulnerability in gallery and kanban database renderers where field descriptions are not escaped in aria-label attributes. In the Electron desktop app with nodeIntegration enabled, attackers can inject JavaScript that calls Node.js child_process APIs to execute arbitrary commands with user privileges.

nvdaltovulnerabilidad CVSS 8.0 NVD

M Alto vulnerabilidad

26/09/2026

[CVE-2026-100646] SiYuan is a self-hosted personal knowledge management system. In versions up to and including 3.8.3,…

SiYuan is a self-hosted personal knowledge management system. In versions up to and including 3.8.3, the kernel's authentication guards (CheckAuth in kernel/model/session.go and IsSessionOriginAllowed in kernel/util/net.go) fail open when the HTTP Origin header is absent, on the incorrect assumption that any browser-initiated cross-site request carries an Origin. Because browsers omit Origin on cr…

nvdaltovulnerabilidad CVSS 8.1 NVD

M Alto vulnerabilidad

26/09/2026

[CVE-2026-100636] SiYuan versions before v3.8.4 contain a path traversal vulnerability in the exportBrowserHTML endpoi…

SiYuan versions before v3.8.4 contain a path traversal vulnerability in the exportBrowserHTML endpoint that allows authenticated administrators to write arbitrary HTML content to index.html outside the workspace directory. Attackers can supply a folder parameter with directory traversal sequences to escape the export directory and overwrite index.html in any pre-existing kernel-writable location, …

nvdaltovulnerabilidad CVSS 7.6 NVD

M Alto vulnerabilidad

26/09/2026

[CVE-2026-100637] SiYuan versions before v3.8.4 contain a path traversal vulnerability in the checkoutRepo endpoint th…

SiYuan versions before v3.8.4 contain a path traversal vulnerability in the checkoutRepo endpoint that allows authenticated administrators to write JSON files outside the workspace. Attackers can supply a sessionID parameter containing directory traversal sequences to overwrite arbitrary JSON files in pre-existing kernel-writable directories outside workspace boundaries.

nvdaltovulnerabilidad CVSS 7.6 NVD