CVE-2017-7675 — The HTTP/2 implementation in Apache Tomcat 9
The HTTP/2 implementation in Apache Tomcat 9.0.0.M1 to 9.0.0.M21 and 8.5.0 to 8.5.15 bypassed a number of security checks that prevented directory traversal attacks. It was therefore possible to bypass security constraints using a specially crafted URL.
Published
2017-08-11T02:29:00.320
Last modified
2026-05-13T00:24:29.033
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
01What is this vulnerability?
The HTTP/2 implementation in Apache Tomcat 9.0.0.M1 to 9.0.0.M21 and 8.5.0 to 8.5.15 bypassed a number of security checks that prevented directory traversal attacks. It was therefore possible to bypass security constraints using a specially crafted URL.
02Affected products
No structured affected-product list available — see references below for vendor advisories.
03Active exploitation status
Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.
04Recommended remediation
- Patch to a fixed version listed in the vendor advisory (see references below).
- Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
- Hunt historical logs for exploitation indicators — see Detection signatures below.
05Technical details
For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.
06Detection signatures
Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.
07Related CVEs
No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.
08Timeline
- Published: 2017-08-11T02:29:00.320
- Last modified: 2026-05-13T00:24:29.033
09References
- www.debian.org — http://www.debian.org/security/2017/dsa-3974
- www.securityfocus.com — http://www.securityfocus.com/bid/100256
- lists.apache.org — https://lists.apache.org/thread.html/1dd0a59c1295cc08ce4c9e7edae5ad2268acc9ba55a…
- lists.apache.org — https://lists.apache.org/thread.html/343558d982879bf88ec20dbf707f8c11255f8e219e8…
- lists.apache.org — https://lists.apache.org/thread.html/5c0e00fd31efc11e147bf99d0f03c00a734447d3b13…
- lists.apache.org — https://lists.apache.org/thread.html/5f8ab8a02f3610bd56ea2b0d69af25cbde451d79c46…
- lists.apache.org — https://lists.apache.org/thread.html/6af47120905aa7d8fe12f42e8ff2284fb338ba141d3…
- lists.apache.org — https://lists.apache.org/thread.html/88855876c33f2f9c532ffb75bfee570ccf0b17ffa77…
- lists.apache.org — https://lists.apache.org/thread.html/b5e3f51d28cd5d9b1809f56594f2cf63dcd6a90429e…
- lists.apache.org — https://lists.apache.org/thread.html/d3a5818e8af731bde6a05ef031ed3acc093c6dd7c4b…
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