Vulnerability index

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Go MEDIUM 5.3
CVE-2026-39825

ReverseProxy can forward queries containing parameters not visible to Rewrite functions. When used with a Rewrite function, or a Director function wh…

Fix: 1.25.10 / 1.26.3+
Fix from $1,600 2026-05-07
Go HIGH 7.5
CVE-2026-33811

When using LookupCNAME with the cgo DNS resolver, a very long CNAME response can trigger a double-free of C memory and a crash.

Fix: 1.25.10 / 1.26.3+
Fix from $1,950 2026-05-07
Go HIGH 7.5
CVE-2026-33814

When processing HTTP/2 SETTINGS frames, transport will enter an infinite loop of writing CONTINUATION frames if it receives a SETTINGS_MAX_FRAME_SIZE…

Fix: 0.53.0 / 1.25.10+
Fix from $1,950 2026-05-07
Go MEDIUM 5.9
CVE-2026-39817

The "go tool pack" subcommand (usually used only by the compiler as an internal tool with known-good inputs) does not sanitize output filenames. Extr…

Fix: 1.25.10 / 1.26.3+
Fix from $1,600 2026-05-07
Image HIGH 7.5
CVE-2026-33813

Parsing a WEBP image with an invalid, large size panics on 32-bit platforms.

Fix: 0.39.0+
Fix from $1,950 2026-04-21
Image MEDIUM 6.1
CVE-2026-33812

Parsing a malicious font file can cause excessive memory allocation.

Fix: 0.39.0+
Fix from $1,600 2026-04-21
Go CRITICAL 9.8
CVE-2026-27143

Arithmetic over induction variables in loops were not correctly checked for underflow or overflow. As a result, the compiler would allow for invalid …

Fix: 1.25.9 / 1.26.2+
Fix from $2,300 2026-04-08
Go HIGH 8.2
CVE-2026-33810

When verifying a certificate chain containing excluded DNS constraints, these constraints are not correctly applied to wildcard DNS SANs which use a …

Fix: 1.26.2+
Fix from $1,950 2026-04-08
Go HIGH 7.5
CVE-2026-32280

During chain building, the amount of work that is done is not correctly limited when a large number of intermediate certificates are passed in Verify…

Fix: 1.25.9 / 1.26.2+
Fix from $1,950 2026-04-08
Go HIGH 7.5
CVE-2026-32283

If one side of the TLS connection sends multiple key update messages post-handshake in a single record, the connection can deadlock, causing uncontro…

Fix: 1.25.9 / 1.26.2+
Fix from $1,950 2026-04-08
Go HIGH 7.5
CVE-2026-32281

Validating certificate chains which use policies is unexpectedly inefficient when certificates in the chain contain a very large number of policy map…

Fix: 1.25.9 / 1.26.2+
Fix from $1,950 2026-04-08
Go HIGH 7.1
CVE-2026-27144

The compiler is meant to unwrap pointers which are the operands of a memory move; a no-op interface conversion prevented the compiler from making the…

Fix: 1.25.9 / 1.26.2+
Fix from $1,950 2026-04-08
Go MEDIUM 6.4
CVE-2026-32282

On Linux, if the target of Root.Chmod is replaced with a symlink while the chmod operation is in progress, Chmod can operate on the target of the sym…

Fix: 1.25.9 / 1.26.2+
Fix from $1,600 2026-04-08
Go MEDIUM 6.1
CVE-2026-32289

Context was not properly tracked across template branches for JS template literals, leading to possibly incorrect escaping of content when branches w…

Fix: 1.25.9 / 1.26.2+
Fix from $1,600 2026-04-08
Go MEDIUM 5.5
CVE-2026-32288

tar.Reader can allocate an unbounded amount of memory when reading a maliciously-crafted archive containing a large number of sparse regions encoded …

Fix: 1.25.9 / 1.26.2+
Fix from $1,600 2026-04-08
Go HIGH 8.8
CVE-2026-27140

SWIG file names containing 'cgo' and well-crafted payloads could lead to code smuggling and arbitrary code execution at build time due to trust layer…

Fix: 1.25.9 / 1.26.2+
Fix from $1,950 2026-04-08
Tiff MEDIUM 5.3
CVE-2026-33809

A maliciously crafted TIFF file can cause image decoding to attempt to allocate up 4GiB of memory, causing either excessive resource consumption or a…

Fix: 0.38.0+
Fix from $1,600 2026-03-25
Go MEDIUM 6.1
CVE-2026-27142

Actions which insert URLs into the content attribute of HTML meta tags are not escaped. This can allow XSS if the meta tag also has an http-equiv att…

Fix: 1.25.8+
Fix from $1,600 2026-03-06
Go HIGH 7.5
CVE-2026-25679

url.Parse insufficiently validated the host/authority component and accepted some invalid URLs.

Fix: 1.25.8+
Fix from $1,950 2026-03-06
Go HIGH 7.5
CVE-2026-27137

When verifying a certificate chain which contains a certificate containing multiple email address constraints which share common local portions but d…

Mitigation only
Fix from $1,950 2026-03-06
Go MEDIUM 5.9
CVE-2026-27138

Certificate verification can panic when a certificate in the chain has an empty DNS name and another certificate in the chain has excluded name const…

Mitigation only
Fix from $1,600 2026-03-06
Go CRITICAL 10.0
CVE-2025-68121

During session resumption in crypto/tls, if the underlying Config has its ClientCAs or RootCAs fields mutated between the initial handshake and the r…

Fix: 1.24.13 / 1.25.7+
Fix from $2,300 2026-02-05
Go HIGH 8.6
CVE-2025-61732

A discrepancy between how Go and C/C++ comments were parsed allowed for code smuggling into the resulting cgo binary.

Fix: 1.24.13 / 1.25.7+
Fix from $1,950 2026-02-05
Go HIGH 7.0
CVE-2025-68119

Downloading and building modules with malicious version strings can cause local code execution. On systems with Mercurial (hg) installed, downloading…

Fix: 1.24.12 / 1.25.6+
Fix from $1,950 2026-01-28
Go HIGH 7.8
CVE-2025-61731

Building a malicious file with cmd/go can cause can cause a write to an attacker-controlled file with partial control of the file content. The "#cgo …

Fix: 1.24.12 / 1.25.6+
Fix from $1,950 2026-01-28
Go HIGH 7.5
CVE-2025-61726

The net/url package does not set a limit on the number of query parameters in a query. While the maximum size of query parameters in URLs is generall…

Fix: 1.24.12 / 1.25.6+
Fix from $1,950 2026-01-28
Go MEDIUM 6.5
CVE-2025-61728

archive/zip uses a super-linear file name indexing algorithm that is invoked the first time a file in an archive is opened. This can lead to a denial…

Fix: 1.24.12 / 1.25.6+
Fix from $1,600 2026-01-28
Go MEDIUM 5.3
CVE-2025-61730

During the TLS 1.3 handshake if multiple messages are sent in records that span encryption level boundaries (for instance the Client Hello and Encryp…

Fix: 1.24.12 / 1.25.6+
Fix from $1,600 2026-01-28
Go MEDIUM 6.5
CVE-2025-61727

An excluded subdomain constraint in a certificate chain does not restrict the usage of wildcard SANs in the leaf certificate. For example a constrain…

Fix: 1.24.11 / 1.25.5+
Fix from $1,600 2025-12-03
Go HIGH 7.5
CVE-2025-61729

Within HostnameError.Error(), when constructing an error string, there is no limit to the number of hosts that will be printed out. Furthermore, the …

Fix: 1.24.11 / 1.25.5+
Fix from $1,950 2025-12-02