CVE-2026-39821

CVE-2026-39821 affects golang.org/x/net/idna; ToASCII/ToUnicode incorrectly accept Punycode-encoded labels that decode to ASCII-only labels (e.g., xn--example-.com). The issue can enable privilege escalation in programs that validate ASCII hostnames but later convert to Unicode, potentially grant...

CVE-2018-17847

The CVE-2018-17847 entry describes a denial of service condition in Go’s html package (x/net/html) triggered by parsing HTML that includes certain SVG/Template constructs. The root cause is an index-out-of-range fault in nodeStack.pop called during html.Parse, which can be exploited by sending a ...

CVE-2018-17848

CVE-2018-17848 affects Go’s html package (x/net/html); the vulnerability is a denial of service via a panic: runtime error (index out of range) in insertionModeStack.pop called from inHeadIM during html.Parse when encountering specific tags like . The initial description notes the parser mishandl...

CVE-2026-25680

CVE-2026-25680 affects the Go ecosystem’s HTML parser in golang.org/x/net/html. Description: parsing arbitrary HTML can cause excessive CPU time, potentially leading to denial of service. CVSSv3.1 base score 6.5 (Network, Low attack complexity, User interaction required, Availability impact). Con...

CVE-2026-27136

CVE-2026-27136 affects golang.org/x/net/html. The issue arises when parsing HTML and rendering via Render, yielding an unexpected HTML tree due to duplicate attributes, which can enable XSS in applications that sanitize input HTML before rendering. The connected docs specify the vulnerability inv...

CVE-2026-42506

CVE-2026-42506 affects the Go ecosystem, specifically parsing in golang.org/x/net/html. The root cause is "invoking incorrect handling of namespaced elements in foreign content" which can produce an unexpected HTML tree during rendering. This can enable XSS in applications that sanitize input HTM...

CVE-2026-42502

Summary of CVE-2026-42502 : The vulnerability concerns the Go project’s HTML parsing in the package golang.org/x/net/html. The root cause is an incorrect handling of HTML elements in foreign content during parsing, which can produce an unexpected HTML tree when rendering with Render. This behavio...

CVE-2026-25681

CVE-2026-25681 affects the golang.org/x/net/html component. The root cause is an incorrect handling of character references in DOCTYPE nodes, which can cause an unexpected HTML tree when rendering and potentially enable XSS in applications that sanitize input HTML before rendering. The descriptio...

CVE-2018-17143

CVE-2018-17143 affects the Go html parser (x/net/html). The vulnerability arises from how the html package handles a crafted input fragment , which can cause a panic: runtime error in inBodyIM during an html.Parse call. The description and related advisories (GHSA/GITLAB entries) confirm the issu...

CVE-2018-17142

CVE-2018-17142: Golang Go html package vulnerability (html.Parse) causing a runtime panic due to invalid memory address. Public records show IBM bulletins listing this CVE within IBM Storage Defender – Data Protect and related IBM products, with remediation involving upgrading to a newer fixed re...

CVE-2018-17075

CVE-2018-17075 affects Go’s html package (x/net/html) prior to 2018-07-13. The vulnerability arises from mishandling the htmlParse insertion mode in frameset contexts, causing a panic: runtime error when parsing crafted HTML like , , or . The issue is linked to HTMLTreeBuilder.cpp in WebKit. The ...

CVE-2018-17846

CVE-2018-17846: The Go html package (x/net/html) up to 2018-09-25 mishandles certain HTML fragments, causing an infinite loop in html.Parse due to inSelectIM and inSelectInTableIM noncompliance with the spec. Impact described as denial of service (infinite loop) during parsing. Connected sources ...