CVE-2017-7674Medium· 4.3▾ Sunlit

The CORS Filter in Apache Tomcat 9.0.0.M1 to 9.0.0.M21, 8.5.0 to 8.5.15, 8.0.0.RC1 to 8.0.44 and 7.0.41 to 7.0.78 did not add an HTTP Vary header indicating that the response varies depending on Origin

The CORS Filter in Apache Tomcat 9.0.0.M1 to 9.0.0.M21, 8.5.0 to 8.5.15, 8.0.0.RC1 to 8.0.44 and 7.0.41 to 7.0.78 did not add an HTTP Vary header indicating that the response varies depending on Origin. This permitted client and server s…

▾ Sunlit zone — Low / medium · no exploitation signal

Depth score25/ 100 · Low

impact 23.7 · likelihood 1.6 · exploitation 0

⚡ Agent-ready:Raw markdown ↗JSON ↗

Proof of concept

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Published

Aug 11, 2017

Updated

Oct 15, 2026

CVSS

4.3

Vendor

apache

Product

tomcat

CWE

CWE-345

Depth score

25 · Low

EPSS

8.0% · p95

Platforms

—

Source

NVD

Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

CISA SSVC

decided 2026-10-15

Exploitation: none
Automatable: no
Technical impact: partial

Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.

EPSS history

Exploit-prediction probability, daily snapshots since Oct 15.

8.0% → 8.0%

Timeline

Disclosure to exploitation, from the record and what we observed since indexing it.

5 events · 3353 days

Aug 11, 2017Published
Disclosed via NVD
Oct 15, 2026Record revised
Last analysed / modified upstream
Oct 15, 2026EPSS first tracked
8.0%
Oct 15, 2026CVSS changed
— → 4.3
Oct 15, 2026Severity changed
none → medium

apache CWE-345 #nvd #cve.org

Affected

tomcat = 7.0.41
tomcat = 7.0.42
tomcat = 7.0.43
tomcat = 7.0.44
tomcat = 7.0.45
tomcat = 7.0.46
tomcat = 7.0.47
tomcat = 7.0.48
tomcat = 7.0.49
tomcat = 7.0.50
tomcat = 7.0.52
tomcat = 7.0.53
tomcat = 7.0.54
tomcat = 7.0.55
tomcat = 7.0.56
tomcat = 7.0.57
tomcat = 7.0.58
tomcat = 7.0.59
tomcat = 7.0.60
tomcat = 7.0.61
tomcat = 7.0.62
tomcat = 7.0.63
tomcat = 7.0.64
tomcat = 7.0.65
tomcat = 7.0.66
tomcat = 7.0.67
tomcat = 7.0.68
tomcat = 7.0.69
tomcat = 7.0.70
tomcat = 7.0.71
tomcat = 7.0.72
tomcat = 7.0.73
tomcat = 7.0.74
tomcat = 7.0.75
tomcat = 7.0.76
tomcat = 7.0.77
tomcat = 7.0.78
tomcat = 8.0
tomcat = 8.0.0
tomcat = 8.0.1
tomcat = 8.0.2
tomcat = 8.0.3
tomcat = 8.0.4
tomcat = 8.0.5
tomcat = 8.0.6
tomcat = 8.0.7
tomcat = 8.0.8
tomcat = 8.0.9
tomcat = 8.0.10
tomcat = 8.0.11
tomcat = 8.0.12
tomcat = 8.0.13
tomcat = 8.0.14
tomcat = 8.0.15
tomcat = 8.0.16
tomcat = 8.0.17
tomcat = 8.0.18
tomcat = 8.0.19
tomcat = 8.0.20
tomcat = 8.0.21
tomcat = 8.0.22
tomcat = 8.0.23
tomcat = 8.0.24
tomcat = 8.0.25
tomcat = 8.0.26
tomcat = 8.0.27
tomcat = 8.0.28
tomcat = 8.0.29
tomcat = 8.0.30
tomcat = 8.0.31
tomcat = 8.0.32
tomcat = 8.0.33
tomcat = 8.0.34
tomcat = 8.0.35
tomcat = 8.0.36
tomcat = 8.0.37
tomcat = 8.0.38
tomcat = 8.0.39
tomcat = 8.0.40
tomcat = 8.0.41
tomcat = 8.0.42
tomcat = 8.0.43
tomcat = 8.0.44
tomcat = 8.5.0
tomcat = 8.5.1
tomcat = 8.5.2
tomcat = 8.5.3
tomcat = 8.5.4
tomcat = 8.5.5
tomcat = 8.5.6
tomcat = 8.5.7
tomcat = 8.5.8
tomcat = 8.5.9
tomcat = 8.5.10
tomcat = 8.5.11
tomcat = 8.5.12
tomcat = 8.5.13
tomcat = 8.5.14
tomcat = 8.5.15
tomcat = 9.0.0

Full technical detail▾

Overview

Affected

tomcat = 7.0.41
tomcat = 7.0.42
tomcat = 7.0.43
tomcat = 7.0.44
tomcat = 7.0.45
tomcat = 7.0.46
tomcat = 7.0.47
tomcat = 7.0.48
tomcat = 7.0.49
tomcat = 7.0.50
tomcat = 7.0.52
tomcat = 7.0.53
tomcat = 7.0.54
tomcat = 7.0.55
tomcat = 7.0.56
tomcat = 7.0.57
tomcat = 7.0.58
tomcat = 7.0.59
tomcat = 7.0.60
tomcat = 7.0.61
tomcat = 7.0.62
tomcat = 7.0.63
tomcat = 7.0.64
tomcat = 7.0.65
tomcat = 7.0.66
tomcat = 7.0.67
tomcat = 7.0.68
tomcat = 7.0.69
tomcat = 7.0.70
tomcat = 7.0.71
tomcat = 7.0.72
tomcat = 7.0.73
tomcat = 7.0.74
tomcat = 7.0.75
tomcat = 7.0.76
tomcat = 7.0.77
tomcat = 7.0.78
tomcat = 8.0
tomcat = 8.0.0
tomcat = 8.0.1
tomcat = 8.0.2
tomcat = 8.0.3
tomcat = 8.0.4
tomcat = 8.0.5
tomcat = 8.0.6
tomcat = 8.0.7
tomcat = 8.0.8
tomcat = 8.0.9
tomcat = 8.0.10
tomcat = 8.0.11
tomcat = 8.0.12
tomcat = 8.0.13
tomcat = 8.0.14
tomcat = 8.0.15
tomcat = 8.0.16
tomcat = 8.0.17
tomcat = 8.0.18
tomcat = 8.0.19
tomcat = 8.0.20
tomcat = 8.0.21
tomcat = 8.0.22
tomcat = 8.0.23
tomcat = 8.0.24
tomcat = 8.0.25
tomcat = 8.0.26
tomcat = 8.0.27
tomcat = 8.0.28
tomcat = 8.0.29
tomcat = 8.0.30
tomcat = 8.0.31
tomcat = 8.0.32
tomcat = 8.0.33
tomcat = 8.0.34
tomcat = 8.0.35
tomcat = 8.0.36
tomcat = 8.0.37
tomcat = 8.0.38
tomcat = 8.0.39
tomcat = 8.0.40
tomcat = 8.0.41
tomcat = 8.0.42
tomcat = 8.0.43
tomcat = 8.0.44
tomcat = 8.5.0
tomcat = 8.5.1
tomcat = 8.5.2
tomcat = 8.5.3
tomcat = 8.5.4
tomcat = 8.5.5
tomcat = 8.5.6
tomcat = 8.5.7
tomcat = 8.5.8
tomcat = 8.5.9
tomcat = 8.5.10
tomcat = 8.5.11
tomcat = 8.5.12
tomcat = 8.5.13
tomcat = 8.5.14
tomcat = 8.5.15
tomcat = 9.0.0

Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

References

Change history

Field changes observed since this record was first indexed.

Oct 15, 2026CVSS — → 4.3
Oct 15, 2026Severity none → medium

Related vulnerabilities

Connected by shared product, vendor, weakness, or advisory.

#nvd#cve.org