TS
Product
Traffic Server
by Apache · last CVE Jul 29, 2026
120
CVEs
0
On KEV
10.0
Max CVSS
0
New 30D
Severity mix
Critical 21High 75Medium 20Low 0
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CVECVSSEPSSPublishedSummary · affected versions
CVE-2026-58154
8.9
1%
Jul 29
Apache Traffic Server: Memory-safety errors in MIME and header parsing
Affected: 8.0.0 through 8.1.9; 9.0.0 before 9.2.15; 10.0.0 before 10.1.4
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 8.1.9; 9.0.0 before 9.2.15; 10.0.0 before 10.1.4
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 8.1.9; 9.0.0 before 9.2.15; 10.0.0 before 10.1.4
CVE-2017-5660
8.6
2%
Feb 27
There is a vulnerability in Apache Traffic Server (ATS) 6.2.0 and prior and 7.0.0 and prior with the Host header and line folding
Affected: through 6.2.0; 6.2.1; 6.2.1; 6.2.2; 6.2.2; 7.0.0; +3 more
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 before 10.1.4
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 8.1.9; 9.0.0 before 9.2.15; 10.0.0 before 10.1.4
CVE-2026-58159
8.2
1%
Jul 29
Apache Traffic Server: Listener and ACL handling allow access-control bypass
Affected: 8.0.0 through 8.1.9; 9.0.0 before 9.2.15; 10.0.0 before 10.1.4
CVE-2024-35296
8.2
1%
Jul 26
Invalid Accept-Encoding header can cause Apache Traffic Server to fail cache lookup and force forwarding requests
Affected: 8.0.0 before 8.1.11; 9.0.0 before 9.2.5
CVE-2021-44759
8.1
2%
Mar 23
Improper Authentication vulnerability in TLS origin validation of Apache Traffic Server allows an attacker to create a man in the middle attack
Affected: 8.0.0 through 8.1.0
CVE-2021-38161
8.1
2%
Nov 3
Improper Authentication vulnerability in TLS origin verification of Apache Traffic Server allows for man in the middle attacks
Affected: 8.0.0 through 8.0.8
CVE-2026-58189
7.5
1%
Jul 29
Apache Traffic Server: Plugins resetting the redirect counter enable SSRF amplification
Affected: 8.0.0 through 8.1.9; 9.0.0 before 9.2.15; 10.0.0 before 10.1.4
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 8.1.9; 9.0.0 before 9.2.15; 10.0.0 before 10.1.4
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 8.1.9; 9.0.0 before 9.2.15; 10.0.0 before 10.1.4
CVE-2026-58184
7.5
1%
Jul 29
Apache Traffic Server: header_rewrite plugin cookie handling can corrupt memory
Affected: 8.0.0 through 8.1.9; 9.0.0 before 9.2.15; 10.0.0 before 10.1.4
CVE-2026-58183
7.5
1%
Jul 29
Apache Traffic Server: prefetch plugin can crash on attacker-influenced input
Affected: 8.0.0 through 8.1.9; 9.0.0 before 9.2.15; 10.0.0 before 10.1.4
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 8.1.9; 9.0.0 before 9.2.15; 10.0.0 before 10.1.4
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 8.1.9; 9.0.0 before 9.2.15; 10.0.0 before 10.1.4
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 8.1.9; 9.0.0 before 9.2.15; 10.0.0 before 10.1.4
CVE-2026-58175
7.5
1%
Jul 29
Apache Traffic Server: HostDB SRV handling leaks memory
Affected: 8.0.0 through 8.1.9; 9.0.0 before 9.2.15; 10.0.0 before 10.1.4
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 8.1.9; 9.0.0 before 9.2.15; 10.0.0 before 10.1.4
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 8.1.9; 9.0.0 before 9.2.15; 10.0.0 before 10.1.4
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 8.1.9; 9.0.0 before 9.2.15; 10.0.0 before 10.1.4
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 8.1.9; 9.0.0 before 9.2.15; 10.0.0 before 10.1.4
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 before 9.2.14; 10.0.0 before 10.1.3
CVE-2025-65114
7.5
0%
Apr 2
Apache Traffic Server: Malformed chunked message body allows request smuggling
Affected: 9.0.0 before 9.2.13; 10.0.0 before 10.1.2
CVE-2025-58136
7.5
1%
Apr 2
Apache Traffic Server: A simple legitimate POST request causes a crash
Affected: 9.0.0 before 9.2.13; 10.0.0 before 10.1.2
CVE-2025-49763
7.5
1%
Jun 19
ESI plugin does not have the limit for maximum inclusion depth, and that allows excessive memory consumption if malicious instructions are inserted
Affected: 9.0.0 before 9.2.11; 10.0.0 before 10.0.6
CVE-2025-31698
7.5
1%
Jun 19
ACL configured in ip_allow.config or remap.config does not use IP addresses that are provided by PROXY protocol
Affected: 9.0.0 before 9.2.11; 10.0.0 before 10.0.6
CVE-2024-53868
7.5
1%
Apr 3
Apache Traffic Server allows request smuggling if chunked messages are malformed.  This issue affects Apache Traffic Server: from 9.2.0 through 9.2.9, from 10.0.0 through…
Affected: 9.0.0 before 9.2.10; 10.0.0 before 10.0.5
CVE-2024-50305
7.5
1%
Nov 14
Valid Host header field can cause Apache Traffic Server to crash on some platforms
Affected: 9.0.0 before 9.2.6
CVE-2024-38479
7.5
1%
Nov 14
Improper Input Validation vulnerability in Apache Traffic Server
Affected: 8.0.0 through 8.1.11; 9.0.0 before 9.2.6
CVE-2024-35161
7.5
1%
Jul 26
Apache Traffic Server forwards malformed HTTP chunked trailer section to origin servers
Affected: 8.0.0 before 8.1.11; 9.0.0 before 9.2.5
CVE-2023-38522
7.5
1%
Jul 26
Apache Traffic Server accepts characters that are not allowed for HTTP field names and forwards malformed requests to origin servers
Affected: 8.0.0 before 8.1.11; 9.0.0 before 9.2.5
CVE-2024-31309
7.5
95%
Apr 10
HTTP/2 CONTINUATION DoS attack can cause Apache Traffic Server to consume more resources on the server.  Version from 8.0.0 through 8.1.9, from 9.0.0 through 9.2.3 are affected
Affected: 8.0.0 before 8.1.10; 9.0.0 before 9.2.4
CVE-2023-41752
7.5
2%
Oct 17
Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Apache Traffic Server.This issue affects Apache Traffic Server: from 8.0.0 through 8.1.8, from 9.0.0…
Affected: 8.0.0 before 8.1.9; 9.0.0 before 9.2.3
CVE-2023-39456
7.5
58%
Oct 17
Improper Input Validation vulnerability in Apache Traffic Server with malformed HTTP/2 frames.This issue affects Apache Traffic Server: from 9.0.0 through 9.2.2
Affected: 9.0.0 before 9.2.3
CVE-2022-47185
7.5
2%
Aug 9
Improper input validation vulnerability on the range header in Apache Software Foundation Apache Traffic Server.This issue affects Apache Traffic Server: through 9.2.1
Affected: 8.0.0 through 8.1.7; 9.0.0 through 9.2.1
CVE-2023-33933
7.5
2%
Jun 14
Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Apache Software Foundation Apache Traffic Server.This issue affects Apache Traffic Server: from 8.0.0…
Affected: 8.0.0 before 8.1.7; 9.0.0 before 9.2.1
CVE-2023-30631
7.5
2%
Jun 14
Improper Input Validation vulnerability in Apache Software Foundation Apache Traffic Server.  The configuration option proxy.config.http.push_method_enabled didn't function. …
Affected: 8.0.0 before 8.1.7; 9.0.0 before 9.2.1
CVE-2022-47184
7.5
1%
Jun 14
Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Apache Software Foundation Apache Traffic Server.This issue affects Apache Traffic Server: 8.0.0 to…
Affected: 8.0.0 before 8.1.7; 9.0.0 before 9.2.1
CVE-2022-32749
7.5
1%
Dec 19
Improper Check for Unusual or Exceptional Conditions vulnerability handling requests in Apache Traffic Server allows an attacker to crash the server under certain conditions
Affected: 8.0.0 before 8.1.6; 9.0.0 before 9.1.4
CVE-2022-31779
7.5
2%
Aug 10
Improper HTTP/2 scheme and method validation
Affected: 8.0.0 through 8.1.4; 9.0.0 through 9.1.2
CVE-2022-25763
7.5
2%
Aug 10
Improper input validation on HTTP/2 headers
Affected: 8.0.0 before 8.1.5; 9.0.0 before 9.1.3
CVE-2022-28129
7.5
2%
Aug 10
Insufficient Validation of HTTP/1.x Headers
Affected: 8.0.0 through 8.1.4; 9.0.0 through 9.1.2
CVE-2022-31780
7.5
2%
Aug 10
HTTP/2 framing vulnerabilities
Affected: 8.0.0 through 8.1.4; 9.0.0 through 9.1.2
CVE-2022-31778
7.5
2%
Aug 10
Transfer-Encoding not treated as hop-by-hop
Affected: 8.0.0 through 8.1.4; 9.0.0 through 9.1.2
CVE-2021-37150
7.5
2%
Aug 10
Protocol vs scheme mismatch
Affected: 8.0.0 through 8.1.4; 9.0.0 through 9.1.2
CVE-2021-44040
7.5
2%
Mar 23
Improper Input Validation vulnerability in request line parsing of Apache Traffic Server allows an attacker to send invalid requests
Affected: 8.0.0 through 8.1.3; 9.0.0 through 9.1.1
CVE-2021-41585
7.5
2%
Nov 3
Improper Input Validation vulnerability in accepting socket connections in Apache Traffic Server allows an attacker to make the server stop accepting new connections
Affected: 8.0.0 through 8.1.2; 9.0.0 through 9.1.0
CVE-2021-37149
7.5
3%
Nov 3
Improper Input Validation vulnerability in header parsing of Apache Traffic Server allows an attacker to smuggle requests
Affected: 8.0.0 through 8.1.2; 9.0.0 through 9.1.0
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