Apache Traffic Server vulnerabilities

Latest Apache Traffic Server CVEs

Newest publication first · page 4 of 5

1. CVE-2023-30631 Apache Traffic Server: Configuration option to block the PUSH method in ATS didn't work

   Published 2023-06-14

   High·CVSS 7.5 EPSS 2.0%

   Improper Input Validation vulnerability in Apache Software Foundation Apache Traffic Server. The configuration option proxy.config.http.push_method_enabled didn't function. However, by default the PUSH method is blocked in the ip_allow configuration file.This issue affects Apache...

2. CVE-2023-33933 Apache Traffic Server: s3_auth plugin problem with hash calculation

   Published 2023-06-14

   High·CVSS 7.5 EPSS 1.5%

   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 through 9.2.0. 8.x users should upgrade to 8.1.7 or later versions 9.x users should upgrade to 9.2.1 o...

3. CVE-2022-47184 Apache Traffic Server: The TRACE method can be use to disclose network information

   Published 2023-06-14

   High·CVSS 7.5 EPSS 1.5%

   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 9.2.0.

4. CVE-2022-40743 Apache Traffic Server: Security issues with the xdebug plugin

   Published 2022-12-19

   Medium·CVSS 6.1 EPSS 1.1%

   Improper Input Validation vulnerability for the xdebug plugin in Apache Software Foundation Apache Traffic Server can lead to cross site scripting and cache poisoning attacks.This issue affects Apache Traffic Server: 9.0.0 to 9.1.3. Users should upgrade to 9.1.4 or later versions...

5. CVE-2022-37392 Apache Traffic Server: Improperly reading the client requests

   Published 2022-12-19

   Medium·CVSS 5.3 EPSS 1.2%

   Improper Check for Unusual or Exceptional Conditions vulnerability in handling the requests to Apache Traffic Server. This issue affects Apache Traffic Server 8.0.0 to 9.1.2.

6. CVE-2022-32749 Apache Traffic Server: Improperly handled requests can cause crashes in specific plugins

   Published 2022-12-19

   High·CVSS 7.5 EPSS 1.4%

   Improper Check for Unusual or Exceptional Conditions vulnerability handling requests in Apache Traffic Server allows an attacker to crash the server under certain conditions. This issue affects Apache Traffic Server: from 8.0.0 through 9.1.3.

7. CVE-2022-31779 Improper HTTP/2 scheme and method validation

   Published 2022-08-10

   High·CVSS 7.5 EPSS 2.5%

   Improper Input Validation vulnerability in HTTP/2 header parsing of Apache Traffic Server allows an attacker to smuggle requests. This issue affects Apache Traffic Server 8.0.0 to 9.1.2.

8. CVE-2022-25763 Improper input validation on HTTP/2 headers

   Published 2022-08-10

   High·CVSS 7.5 EPSS 2.1%

   Improper Input Validation vulnerability in HTTP/2 request validation of Apache Traffic Server allows an attacker to create smuggle or cache poison attacks. This issue affects Apache Traffic Server 8.0.0 to 9.1.2.

9. CVE-2022-31780 HTTP/2 framing vulnerabilities

   Published 2022-08-10

   High·CVSS 7.5 EPSS 2.5%

   Improper Input Validation vulnerability in HTTP/2 frame handling of Apache Traffic Server allows an attacker to smuggle requests. This issue affects Apache Traffic Server 8.0.0 to 9.1.2.

10. CVE-2022-31778 Transfer-Encoding not treated as hop-by-hop

    Published 2022-08-10

    High·CVSS 7.5 EPSS 2.1%

    Improper Input Validation vulnerability in handling the Transfer-Encoding header of Apache Traffic Server allows an attacker to poison the cache. This issue affects Apache Traffic Server 8.0.0 to 9.0.2.

11. CVE-2022-28129 Insufficient Validation of HTTP/1.x Headers

    Published 2022-08-10

    High·CVSS 7.5 EPSS 2.5%

    Improper Input Validation vulnerability in HTTP/1.1 header parsing of Apache Traffic Server allows an attacker to send invalid headers. This issue affects Apache Traffic Server 8.0.0 to 9.1.2.

12. CVE-2021-37150 Protocol vs scheme mismatch

    Published 2022-08-10

    High·CVSS 7.5 EPSS 2.3%

    Improper Input Validation vulnerability in header parsing of Apache Traffic Server allows an attacker to request secure resources. This issue affects Apache Traffic Server 8.0.0 to 9.1.2.

13. CVE-2021-44759 Improper authentication vulnerability in TLS origin verification

    Published 2022-03-23

    High·CVSS 8.1 EPSS 1.6%

    Improper Authentication vulnerability in TLS origin validation of Apache Traffic Server allows an attacker to create a man in the middle attack. This issue affects Apache Traffic Server 8.0.0 to 8.1.0.

14. CVE-2021-44040 HTTP request line fuzzing attacks

    Published 2022-03-23

    High·CVSS 7.5 EPSS 2.0%

    Improper Input Validation vulnerability in request line parsing of Apache Traffic Server allows an attacker to send invalid requests. This issue affects Apache Traffic Server 8.0.0 to 8.1.3 and 9.0.0 to 9.1.1.

15. CVE-2021-43082 heap-buffer-overflow with stats-over-http plugin

    Published 2021-11-03

    Critical·CVSS 9.8 EPSS 2.4%

    Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in the stats-over-http plugin of Apache Traffic Server allows an attacker to overwrite memory. This issue affects Apache Traffic Server 9.1.0.

16. CVE-2021-41585 ATS stops accepting connections on FreeBSD

    Published 2021-11-03

    High·CVSS 7.5 EPSS 2.5%

    Improper Input Validation vulnerability in accepting socket connections in Apache Traffic Server allows an attacker to make the server stop accepting new connections. This issue affects Apache Traffic Server 5.0.0 to 9.1.0.

17. CVE-2021-38161 Not validating origin TLS certificate

    Published 2021-11-03

    High·CVSS 8.1 EPSS 2.0%

    Improper Authentication vulnerability in TLS origin verification of Apache Traffic Server allows for man in the middle attacks. This issue affects Apache Traffic Server 8.0.0 to 8.0.8.

18. CVE-2021-37149 Request Smuggling - multiple attacks

    Published 2021-11-03

    High·CVSS 7.5 EPSS 2.7%

    Improper Input Validation vulnerability in header parsing of Apache Traffic Server allows an attacker to smuggle requests. This issue affects Apache Traffic Server 8.0.0 to 8.1.2 and 9.0.0 to 9.1.0.

19. CVE-2021-37148 Request Smuggling - transfer encoding validation

    Published 2021-11-03

    High·CVSS 7.5 EPSS 2.7%

    Improper input validation vulnerability in header parsing of Apache Traffic Server allows an attacker to smuggle requests. This issue affects Apache Traffic Server 8.0.0 to 8.1.2 and 9.0.0 to 9.0.1.

20. CVE-2021-37147 Request Smuggling - LF line ending

    Published 2021-11-03

    High·CVSS 7.5 EPSS 2.5%

    Improper input validation vulnerability in header parsing of Apache Traffic Server allows an attacker to smuggle requests. This issue affects Apache Traffic Server 8.0.0 to 8.1.2 and 9.0.0 to 9.1.0.

21. CVE-2021-35474 Dynamic stack buffer overflow in cachekey plugin

    Published 2021-06-30

    Critical·CVSS 9.8 EPSS 2.7%

    Stack-based Buffer Overflow vulnerability in cachekey plugin of Apache Traffic Server. This issue affects Apache Traffic Server 7.0.0 to 7.1.12, 8.0.0 to 8.1.1, 9.0.0 to 9.0.1.

22. CVE-2021-32567 Reading HTTP/2 frames too many times

    Published 2021-06-30

    High·CVSS 7.5 EPSS 2.4%

    Improper Input Validation vulnerability in HTTP/2 of Apache Traffic Server allows an attacker to DOS the server. This issue affects Apache Traffic Server 7.0.0 to 7.1.12, 8.0.0 to 8.1.1, 9.0.0 to 9.0.1.

23. CVE-2021-32566 Specific sequence of HTTP/2 frames can cause ATS to crash

    Published 2021-06-30

    High·CVSS 7.5 EPSS 2.4%

    Improper Input Validation vulnerability in HTTP/2 of Apache Traffic Server allows an attacker to DOS the server. This issue affects Apache Traffic Server 7.0.0 to 7.1.12, 8.0.0 to 8.1.1, 9.0.0 to 9.0.1.

24. CVE-2021-32565 HTTP Request Smuggling, content length with invalid charters

    Published 2021-06-29

    High·CVSS 7.5 EPSS 2.1%

    Invalid values in the Content-Length header sent to Apache Traffic Server allows an attacker to smuggle requests. This issue affects Apache Traffic Server 7.0.0 to 7.1.12, 8.0.0 to 8.1.1, 9.0.0 to 9.0.1.

25. CVE-2021-27577 Incorrect handling of url fragment leads to cache poisoning

    Published 2021-06-29

    High·CVSS 7.5 EPSS 3.4%

    Incorrect handling of url fragment vulnerability of Apache Traffic Server allows an attacker to poison the cache. This issue affects Apache Traffic Server 7.0.0 to 7.1.12, 8.0.0 to 8.1.1, 9.0.0 to 9.0.1.

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.