AT
Product
Apache Traffic Server
by Apache Software Foundation · last CVE Oct 21, 2026
64
CVEs
0
On KEV
10.0
Max CVSS
16
New 30D
Severity mix
Critical 18High 35Medium 11Low 0
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CVECVSSEPSSPublishedSummary · affected versions
CVE-2026-111812
New
10.0
0%
Oct 21
Apache Traffic Server: origin_server_auth signs client-controlled AWS headers under the proxy's IAM credentials
Affected: 8.0.0 through 8.1.11; 9.0.0 through 9.2.15; 10.0.0 through 10.1.4; 10.2.0
CVE-2026-111815
New
10.0
0%
Oct 21
Apache Traffic Server: TLS session ticket resumption bypasses per-SNI verify_client STRICT enforcement
Affected: 8.0.0 through 8.1.11; 9.0.0 through 9.2.15; 10.0.0 through 10.1.4; 10.2.0
CVE-2026-111814
New
10.0
0%
Oct 21
Apache Traffic Server: Default server_session_sharing.match omits MASK_CERT, allowing pooled mTLS identity confusion at the origin
Affected: 9.0.0 through 9.2.15; 10.0.0 through 10.1.4; 10.2.0
CVE-2026-111813
New
10.0
0%
Oct 21
Apache Traffic Server: magick plugin passes client query strings unfiltered to ImageMagick convert in the default configuration
Affected: 8.0.1 through 8.1.11; 9.0.0 through 9.2.15; 10.0.0 through 10.1.4; 10.2.0
CVE-2026-58162
10.0
0%
Jul 29
Apache Traffic Server: Certifier plugin trusts client SNI when generating certificates
Affected: 8.0.0 through 8.1.11; 9.0.0 through 9.2.14; 10.0.0 through 10.1.3
CVE-2026-58150
10.0
1%
Jul 29
Apache Traffic Server: HTTP/2 requests with Transfer-Encoding are not rejected, allowing request smuggling
Affected: 8.0.0 through 8.1.11; 9.0.0 through 9.2.14; 10.0.0 through 10.1.3
CVE-2026-57834
10.0
1%
Jul 29
Apache Traffic Server: Malformed chunked message body allows request smuggling
Affected: 8.0.0 through 8.1.11; 9.0.0 through 9.2.14; 10.0.0 through 10.1.3
CVE-2026-58185
9.8
1%
Jul 29
Apache Traffic Server: Use-after-free in the intercept plugin
Affected: 8.0.0 through 8.1.11; 9.0.0 through 9.2.14; 10.0.0 through 10.1.3
CVE-2026-58179
9.8
1%
Jul 29
Apache Traffic Server: regex_remap plugin overflows the stack from attacker input
Affected: 8.0.0 through 8.1.11; 9.0.0 through 9.2.14; 10.0.0 through 10.1.3
CVE-2026-58177
9.8
1%
Jul 29
Apache Traffic Server: Memory-safety and path-traversal errors in the Cripts framework
Affected: 10.0.0 through 10.1.3
CVE-2026-111809
New
9.3
0%
Oct 21
Apache Traffic Server: HEAD requests carrying Content-Length or Transfer-Encoding enable request smuggling
Affected: 8.0.0 through 8.1.11; 9.0.0 through 9.2.15; 10.0.0 through 10.1.4; 10.2.0
CVE-2026-111816
New
9.3
0%
Oct 21
Apache Traffic Server: A malformed 302 response bypasses parse-error rejection through the Transfer-Encoding: chunked carve-out
Affected: 8.0.0 through 8.1.11; 9.0.0 through 9.2.15; 10.0.0 through 10.1.4; 10.2.0
CVE-2026-102795
9.3
0%
Oct 2
Apache Traffic Server: SNI to Host header matching policy is not properly enforced
Affected: 9.0.0 through 9.2.14; 10.0.0 through 10.1.3
CVE-2026-58155
9.3
1%
Jul 29
Apache Traffic Server: Header-name length truncation enables header aliasing and request smuggling
Affected: 8.0.0 through 8.1.11; 9.0.0 through 9.2.14; 10.0.0 through 10.1.3
CVE-2026-41920
9.3
1%
Jul 29
Apache Traffic Server: SNI to Host header matching policy is not properly enforced
Affected: 9.0.0 through 9.1.14; 10.0.0 through 10.1.3
CVE-2026-58163
9.1
1%
Jul 29
Apache Traffic Server: Cache deserialization and lifetime errors can corrupt state or crash the server
Affected: 8.0.0 through 8.1.11; 9.0.0 through 9.2.14; 10.0.0 through 10.1.3
CVE-2026-33267
9.1
1%
Jul 29
Apache Traffic Server: Untrusted @ headers can spoof ATS internal metadata
Affected: 9.2.0 through 9.2.14; 10.1.0 through 10.1.3
CVE-2026-111811
New
9.0
0%
Oct 21
Apache Traffic Server: tsmemcache plugin exposes the shared proxy cache over the network with no authentication
Affected: 8.0.0 through 8.1.11; 9.0.0 through 9.2.15; 10.0.0 through 10.1.4; 10.2.0
CVE-2025-31699
New
8.9
0%
Oct 21
Apache Traffic Server: Origin connection still owed a request body is reused, enabling request smuggling
Affected: 8.0.0 through 8.1.11; 9.0.0 through 9.2.15; 10.0.0 through 10.1.4; 10.2.0
CVE-2026-58154
8.9
1%
Jul 29
Apache Traffic Server: Memory-safety errors in MIME and header parsing
Affected: 8.0.0 through 8.1.11; 9.0.0 through 9.2.14; 10.0.0 through 10.1.3
CVE-2025-55702
New
8.7
0%
Oct 21
Apache Traffic Server: An unread Expect: 100-continue request body is framed as a new request
Affected: 8.0.0 through 8.1.11; 9.0.0 through 9.2.15; 10.0.0 through 10.1.4; 10.2.0
CVE-2026-58157
8.7
0%
Jul 29
Apache Traffic Server: Improper server-session reuse can expose data across client connections
Affected: 8.0.0 through 8.1.11; 9.0.0 through 9.2.14; 10.0.0 through 10.1.3
CVE-2026-111808
New
8.6
0%
Oct 21
Apache Traffic Server: HTTP/2 DATA frame padding underflow lets a client trigger backend worker-pool exhaustion
Affected: 8.0.0 through 8.1.11; 9.0.0 through 9.2.15; 10.0.0 through 10.1.4; 10.2.0
CVE-2026-111805
New
8.6
0%
Oct 21
Apache Traffic Server: HTTP/2 Content-Length truncation lets a client trigger backend worker-pool exhaustion
Affected: 8.0.0 through 8.1.11; 9.0.0 through 9.2.15; 10.0.0 through 10.1.4; 10.2.0
CVE-2026-58182
8.6
1%
Jul 29
Apache Traffic Server: ts_lua plugin has initialization and resource-handling errors
Affected: 8.0.0 through 8.1.11; 9.0.0 through 9.2.14; 10.0.0 through 10.1.3
CVE-2026-58153
8.3
1%
Jul 29
Apache Traffic Server: HTTP/2 to HTTP/1 conversion forwards origin trailers to clients unsafely
Affected: 10.0.0 through 10.1.3
CVE-2026-111804
New
8.2
0%
Oct 21
Apache Traffic Server: wasm plugin has a use-after-free and forwards unvalidated guest metric IDs
Affected: 10.0.0 through 10.1.4; 10.2.0
CVE-2026-58188
8.2
1%
Jul 29
Apache Traffic Server: Memory-safety and limit-bypass errors across experimental plugins
Affected: 8.0.0 through 8.1.11; 9.0.0 through 9.2.14; 10.0.0 through 10.1.3
CVE-2026-58159
8.2
1%
Jul 29
Apache Traffic Server: Listener and ACL handling allow access-control bypass
Affected: 8.0.0 through 8.1.11; 9.0.0 through 9.2.14; 10.0.0 through 10.1.3
CVE-2026-111810
New
7.5
0%
Oct 21
Apache Traffic Server: Unthrottled per-header diagnostic logging enables a log-flood denial of service
Affected: 9.2.15; 10.1.4; 10.2.0
CVE-2026-58189
7.5
1%
Jul 29
Apache Traffic Server: Plugins resetting the redirect counter enable SSRF amplification
Affected: 8.0.0 through 8.1.11; 9.0.0 through 9.2.14; 10.0.0 through 10.1.3
CVE-2026-58187
7.5
1%
Jul 29
Apache Traffic Server: Multiplexer plugin chunk decoder enables a denial of service
Affected: 8.0.0 through 8.1.11; 9.0.0 through 9.2.14; 10.0.0 through 10.1.3
CVE-2026-58186
7.5
1%
Jul 29
Apache Traffic Server: webp_transform plugin decodes unsafely and mislabels degraded responses
Affected: 8.0.0 through 8.1.11; 9.0.0 through 9.2.14; 10.0.0 through 10.1.3
CVE-2026-58184
7.5
1%
Jul 29
Apache Traffic Server: header_rewrite plugin cookie handling can corrupt memory
Affected: 8.0.0 through 8.1.11; 9.0.0 through 9.2.14; 10.0.0 through 10.1.3
CVE-2026-58183
7.5
1%
Jul 29
Apache Traffic Server: prefetch plugin can crash on attacker-influenced input
Affected: 8.0.0 through 8.1.11; 9.0.0 through 9.2.14; 10.0.0 through 10.1.3
CVE-2026-58181
7.5
1%
Jul 29
Apache Traffic Server: uri_signing and url_sig plugins can exhaust the stack or crash
Affected: 8.0.0 through 8.1.11; 9.0.0 through 9.2.14; 10.0.0 through 10.1.3
CVE-2026-58180
7.5
1%
Jul 29
Apache Traffic Server: txn_box plugin overflows the stack from attacker input
Affected: 8.0.0 through 8.1.11; 9.0.0 through 9.2.14; 10.0.0 through 10.1.3
CVE-2026-58178
7.5
1%
Jul 29
Apache Traffic Server: ESI plugin allows uncontrolled recursion and server-side request forgery
Affected: 8.0.0 through 8.1.11; 9.0.0 through 9.2.14; 10.0.0 through 10.1.3
CVE-2026-58175
7.5
1%
Jul 29
Apache Traffic Server: HostDB SRV handling leaks memory
Affected: 8.0.0 through 8.1.11; 9.0.0 through 9.2.14; 10.0.0 through 10.1.3
CVE-2026-58164
7.5
1%
Jul 29
Apache Traffic Server: Remap configuration lifetime and TOCTOU errors cause use-after-free
Affected: 8.0.0 through 8.1.11; 9.0.0 through 9.2.14; 10.0.0 through 10.1.3
CVE-2026-58161
7.5
1%
Jul 29
Apache Traffic Server: Memory-safety errors in TLS and SNI handling can crash the server
Affected: 8.0.0 through 8.1.11; 9.0.0 through 9.2.14; 10.0.0 through 10.1.3
CVE-2026-65324
7.5
1%
Jul 29
Apache Traffic Server: HTTP/2 and HTTP/3 dechunking removes per-stream buffer cap, allowing memory exhaustion
Affected: 8.0.0 through 8.1.11; 9.0.0 through 9.2.14; 10.0.0 through 10.1.3
CVE-2026-58151
7.5
1%
Jul 29
Apache Traffic Server: Abusive HTTP/2 framing can exhaust resources and crash the server
Affected: 8.0.0 through 8.1.11; 9.0.0 through 9.2.14; 10.0.0 through 10.1.3
CVE-2026-59173
7.5
1%
Jul 18
Apache Traffic Server: DoS vulnerability in HTTP/2 via stalled flow-control conditions
Affected: 9.0.0 through 9.2.13; 10.0.0 through 10.1.2
CVE-2025-65114
7.5
0%
Apr 2
Apache Traffic Server: Malformed chunked message body allows request smuggling
Affected: 9.0.0 through 9.2.12; 10.0.0 through 10.1.1
CVE-2025-58136
7.5
1%
Apr 2
Apache Traffic Server: A simple legitimate POST request causes a crash
Affected: 10.0.0 through 10.1.1; 9.0.0 through 9.2.12
CVE-2022-31779
7.5
2%
Aug 10
Improper HTTP/2 scheme and method validation
Affected: 8.0.0 to 9.1.2
CVE-2022-25763
7.5
2%
Aug 10
Improper input validation on HTTP/2 headers
Affected: 8.0.0 to 9.1.2
CVE-2022-31780
7.5
2%
Aug 10
HTTP/2 framing vulnerabilities
Affected: 8.0.0 to 9.1.2
CVE-2021-37150
7.5
2%
Aug 10
Protocol vs scheme mismatch
Affected: 8.0.0 to 9.1.2
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