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nodejs vulnerabilities

139 published CVES affecting nodejs, from public sources (CVE.org, NVD, CISA KEV, FIRST EPSS, OSV).

Total
139
Critical
6
High
61
Medium
53
Low
16
Unscored
3
CISA KEV
0
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Latest nodejs CVEs

Newest publication first · page 1 of 6

  1. MediumCVSS 6.5

    A flaw in Node.js HTTP Agent connection reuse can cause a client to accept as valid a response that was sent before the client has sent the request. This is an incomplete fix of CVE-2026-48931. The guard that destroys idle keep-alive sockets when unexpected data arrives only runs...

  2. HighCVSS 7.4

    A flaw in Node.js DNS resolution allows hostnames containing a NUL byte to be silently truncated by the dns.resolve*() functions and dns.reverse(). This is an incomplete fix of CVE-2026-48930, which only covered dns.lookup() and the net/tls host options. Because the name is passe...

  3. HighCVSS 7.4

    A flaw in Node.js TLS hostname verification allows a certificate without a matching IP address SAN to authenticate a connection to an IPv4 address when the host is written with non-ASCII characters, such as fullwidth digits (127.0.0.1). tls.checkServerIdentity() did not recogn...

  4. LowCVSS 3.3 EPSS 0.25%

    A flaw in Node.js Permission Model filesystem enforcement leaves fs.realpathSync() without the required read permission checks. This is an incomplete fix of CVE-2026-21715, which only covered fs.realpathSync.native(). As a result, code running under --permission with restricted -...

  5. LowCVSS 3.6 EPSS 0.20%

    A flaw in Node.js Permission Model filesystem enforcement can grant access to paths that do not match a wildcard --allow-fs-read or --allow-fs-write rule. When the requested path is shorter than the prefix of a wildcard grant, the radix tree lookup stops comparing early and treat...

  6. HighCVSS 7.4 EPSS 0.30%

    A flaw in Node.js TLS hostname verification can cause a server certificate to be validated against a different IP address than the one the client connected to, when the host is a non-canonical IPv4 literal with a leading zero, such as 0127.0.0.1. tls.checkServerIdentity() normali...

  7. MediumCVSS 4.8 EPSS 0.33%

    A flaw in Node.js crypto causes the internal entropy caches used by crypto.randomUUID(), crypto.randomUUIDv7(), and crypto.randomInt() to be saved into user-land startup snapshots (--build-snapshot) and single executable applications built with useSnapshot. If any of these functi...

  8. MediumCVSS 6.7 EPSS 0.62%

    A flaw in Node.js TLS hostname verification allows a certificate with only a DNS SAN to authenticate an IP endpoint when the client connects using a non-canonical IPv4 spelling, such as 0177.0.0.1, 0x7f.0.0.1, 2130706433 or 127.1. tls.checkServerIdentity() did not classify these...

  9. MediumCVSS 6.2

    A flaw in Node.js allows a spoofed TypedArray byteLength to trigger a reachable assertion in the synchronous node:zlib APIs, causing the entire process to crash. All 11 synchronous zlib functions are affected. Repeated exploitation of this condition can result in a denial of serv...

  10. LowCVSS 3.3

    A flaw in Node.js Permission Model enforcement allows process.report writes (and overwrites) files outside --allow-fs-write paths. This can lead to confidentiality impact or bypass of the intended security boundary under affected configurations. This vulnerability affects Node.js...

  11. HighCVSS 7.5

    A flaw in Node.js Permission Model enforcement can over-grant filesystem access across radix-tree prefix boundaries. Under --permission, an attacker who is granted access to one path can abuse boundary handling to read from or write to paths outside the intended filesystem allowl...

  12. MediumCVSS 4.1

    A flaw in Node.js HTTPS Agent connection reuse can cause PFX object-array key collisions, allowing mutual TLS (mTLS) client identities to be reused across requests configured with different client certificates. This vulnerability affects Node.js 26.x, 24.x, and 22.x.

  13. LowCVSS 3.3

    A flaw in Node.js Permission Model enforcement allows trace_events.createTracing().enable() Writes Trace Logs Outside --allow-fs-write. This can lead to confidentiality impact or bypass of the intended security boundary under affected configurations. This vulnerability affects No...

  14. MediumCVSS 5.6 EPSS 0.32%

    A flaw in Node.js TLS hostname handling can cause Embedded-nul hostnames can lead to silent authority rebinding due to c-string truncation in resolver bindings. This vulnerability affects all supported release lines: Node.js 22, Node.js 24, and Node.js 26.

  15. MediumCVSS 5.3 EPSS 0.64%

    A flaw in Node.js HTTP/2 client allows a server to send an unlimited number of ORIGIN frames, which could lead to an Out of Memory error on the client. This vulnerability affects all supported release lines: Node.js 22, Node.js 24, and Node.js 26.

Sources: CVE.org, NVD, CISA KEV, FIRST EPSS, OSV and public exploit-reference metadata. Product matching comes from the published CVE records. A proof-of-concept means public code exists; it is not evidence of exploitation.