UN
Product
undici
by undici · last CVE Oct 15, 2026
33
CVEs
0
On KEV
9.1
Max CVSS
9
New 30D
Severity mix
Critical 5High 19Medium 12Low 3
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Add undici to your stack to get only the CVEs that touch what you run.

CVECVSSEPSSPublishedSummary · affected versions
CVE-2026-1525
9.8
1%
Mar 12
undici is vulnerable to Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
Affected: < 6.24.0; 7.0.0 < 7.24.0
CVE-2026-109383
9.1
0%
Oct 15
undici vulnerable to TLS certificate validation bypass via dropped tls options in Agent
Affected: 4.0.0 before 6.29.1; 7.0.0 before 7.30.1; 8.0.0 before 8.12.2
CVE-2026-109829
9.1
0%
Oct 15
undici vulnerable to cache poisoning and cross-user disclosure via cross-origin redirects
Affected: 7.0.0 before 7.30.1; 8.0.0 before 8.12.2
CVE-2026-84961
9.1
0%
Sep 4
undici vulnerable to TLS certificate validation bypass via dropped connect options in BalancedPool
Affected: 7.24.1 before 7.29.1; 8.0.0 before 8.10.2
CVE-2026-13697
9.1
1%
Jul 29
undici vulnerable to cross-user information disclosure and parse-time crash via degenerate private cache directives
Affected: 7.0.0 before 7.29.0; 8.0.0 before 8.9.0
CVE-2026-6734
8.8
0%
Jun 17
undici vulnerable to cross-origin request routing via SOCKS5 proxy pool reuse
Affected: 7.23.0 before 7.26.0; 8.0.0 before 8.2.0
CVE-2026-84933
8.2
0%
Sep 4
undici vulnerable to cross-user cookie disclosure via Set-Cookie caching in shared caches
Affected: 7.0.0 before 7.29.1; 8.0.0 before 8.10.2
CVE-2026-87029
7.5
0%
Oct 15
undici vulnerable to Denial of Service via unhandled exception in the decompress interceptor
Affected: 7.15.0 before 7.30.1; 8.0.0 before 8.12.2
CVE-2026-109932
7.5
0%
Oct 15
undici WebSocket client vulnerable to Denial of Service via unbounded automatic PONG buffering
Affected: 5.15.0 before 6.29.1; 7.0.0 before 7.30.1; 8.0.0 before 8.12.2
CVE-2026-87018
7.5
0%
Oct 15
undici vulnerable to Denial of Service via TLS 1.2 certificate-changing renegotiation
Affected: 4.2.1 before 6.29.1; 7.0.0 before 7.30.1; 8.0.0 before 8.12.2
CVE-2026-109841
7.5
0%
Oct 15
undici vulnerable to Subresource Integrity bypass via non-lowercase algorithm tokens
Affected: 7.15.0 before 7.30.1; 8.0.0 before 8.12.2
CVE-2026-109924
7.5
0%
Oct 15
undici vulnerable to Denial of Service via unbounded memory in the EventSource parser
Affected: 6.5.0 before 6.29.1; 7.0.0 before 7.30.1; 8.0.0 before 8.12.2
CVE-2026-109869
7.5
0%
Oct 15
undici vulnerable to Denial of Service via unhandled error on excessive content-encodings
Affected: 6.23.0 before 6.29.1; 7.18.0 before 7.30.1; 8.0.0 before 8.12.2
CVE-2026-109855
7.5
0%
Oct 15
undici WebSocket client vulnerable to Denial of Service via failed HTTP/2 handshake
Affected: 8.11.0 before 8.11.2
CVE-2026-19534
7.5
0%
Sep 4
undici vulnerable to Denial of Service via unrequested WebSocket subprotocol
Affected: 6.7.0 before 6.28.1; 7.0.0 before 7.29.1; 8.0.0 before 8.10.2
CVE-2026-85014
7.5
0%
Sep 4
undici vulnerable to Denial of Service via WebSocketStream unclean close
Affected: 7.0.0 before 7.29.1; 8.0.0 before 8.10.2
CVE-2026-14643
7.5
0%
Jul 29
undici vulnerable to cross-user information disclosure via whitespace around equals in Cache-Control directives
Affected: 7.0.0 before 7.29.0; 8.0.0 before 8.9.0
CVE-2026-9675
7.5
0%
Jun 17
undici WebSocket client vulnerable to denial of service via cumulative fragment bypass
Affected: 8.0.0 before 8.5.0
CVE-2026-12151
7.5
1%
Jun 17
undici WebSocket client vulnerable to denial of service via fragment count bypass
Affected: before 6.26.0; 7.0.0 before 7.28.0; 8.0.0 before 8.5.0
CVE-2026-2229
7.5
1%
Mar 12
undici is vulnerable to Unhandled Exception in undici WebSocket Client Due to Invalid server_max_window_bits Validation
Affected: < 6.24.0; 7.0.0 < 7.24.0
CVE-2026-1528
7.5
0%
Mar 12
undici is vulnerable to Malicious WebSocket 64-bit length overflows undici parser and crashes the client
Affected: >= 6.0.0 < 6.24.0; 7.0.0 < 7.24.0
CVE-2026-1526
7.5
1%
Mar 12
undici is vulnerable to Unbounded Memory Consumption in undici WebSocket permessage-deflate Decompression
Affected: < 6.24.0; 7.0.0 < 7.24.0
CVE-2026-85152
7.4
0%
Sep 4
undici vulnerable to cross-origin cache poisoning via missing origin isolation in interceptors
Affected: 8.10.0 before 8.10.2
CVE-2026-9697
7.4
0%
Jun 17
undici vulnerable to TLS certificate validation bypass via dropped requestTls in SOCKS5 ProxyAgent
Affected: 7.23.0 before 7.28.0; 8.0.0 before 8.5.0
CVE-2026-16728
6.5
0%
Jul 29
undici vulnerable to downstream response desynchronization via retry interceptor
Affected: before 6.28.0; 7.0.0 before 7.29.0; 8.0.0 before 8.9.0
CVE-2026-16729
6.5
0%
Jul 29
undici vulnerable to cookie attribute injection via unsanitized domain and unparsed setCookie fields
Affected: before 6.28.0; 7.0.0 before 7.29.0; 8.0.0 before 8.9.0
CVE-2026-18149
5.9
0%
Sep 4
undici vulnerable to Denial of Service via orphaned RetryHandler response body
Affected: 7.11.0 before 7.29.1; 8.0.0 before 8.10.2
CVE-2026-84890
5.9
0%
Sep 4
undici vulnerable to Denial of Service via unbounded decompression of compressed responses
Affected: 7.15.0 before 7.29.1; 8.0.0 before 8.10.2
CVE-2026-85024
5.9
0%
Sep 4
undici vulnerable to Denial of Service via unhandled error in WebSocket permessage-deflate decompression
Affected: 6.25.0 before 6.28.1; 7.28.0 before 7.29.1; 8.1.0 before 8.10.2
CVE-2026-9678
5.9
0%
Jun 17
undici vulnerable to cross-user information disclosure via shared cache whitespace bypass
Affected: 7.0.0 before 7.28.0; 8.0.0 before 8.5.0
CVE-2026-9679
5.9
0%
Jun 17
undici vulnerable to HTTP header injection via Set-Cookie percent-decoding
Affected: before 6.26.0; 7.0.0 before 7.28.0; 8.0.0 before 8.5.0
CVE-2026-2581
5.9
1%
Mar 12
undici is vulnerable to Unbounded Memory Consumption in in Undici's DeduplicationHandler via Response Buffering leads to DoS
Affected: < 6.24.0; 7.0.0 < 7.24.0
CVE-2026-15157
5.4
0%
Jul 29
undici vulnerable to CRLF Injection via blob-like body 'type' property
Affected: before 6.28.0; 7.0.0 before 7.29.0; 8.0.0 before 8.9.0
CVE-2026-84947
5.3
0%
Sep 4
undici vulnerable to response truncation via oversized chunked responses in the dump interceptor
Affected: 7.1.0 before 7.29.1; 8.0.0 before 8.10.2
CVE-2026-85008
5.3
0%
Sep 4
undici vulnerable to caching and replay of unsafe HTTP method responses
Affected: 7.0.0 before 7.29.1; 8.0.0 before 8.10.2
CVE-2026-1527
4.6
0%
Mar 12
undici is vulnerable to CRLF Injection via upgrade option
Affected: < 6.24.0; 7.0.0 < 7.24.0
CVE-2026-18540
3.7
0%
Sep 4
undici vulnerable to downstream response splitting via retry interceptor
Affected: before 6.28.1; 7.0.0 before 7.29.1; 8.0.0 before 8.10.2
CVE-2026-11525
3.7
0%
Jun 17
undici vulnerable to Set-Cookie SameSite attribute downgrade via permissive substring matching
Affected: before 6.26.0; 7.0.0 before 7.28.0; 8.0.0 before 8.5.0
CVE-2026-6733
3.7
0%
Jun 17
undici vulnerable to HTTP response queue poisoning via keep-alive socket reuse
Affected: before 6.26.0; 7.0.0 before 7.28.0; 8.0.0 before 8.5.0
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