4.3

CVE-2018-11784: apache software foundation apache tomcat URL Redirection to Untrusted Site

Modified
AliasesSUSE-SU-2018:3393-1SUSE-SU-2018:3935-1SUSE-SU-2018:3968-1
Published 04-10-2018Last modified 15-10-2026

Vulnerability summary

CVE-2018-11784 is a medium (CVSS 4.3) URL Redirection to Untrusted Site vulnerability in apache software foundation apache tomcat. EPSS estimates a 97.68% chance of exploitation in the next 30 days, higher than 99.9% of scored vulnerabilities. 1 public exploit is recorded.

Priority
Routine

Not severe (CVSS 4.3, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
4.3/10
010
Medium · v3.0 (NVD)
EPSS score
97.68%
0%100%
Critical · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits1exploit-database

Advisory lineage

Upstream 0 · Downstream 12 · Related 7
DSA-4596-1MGASA-2018-0479OPENSUSE-SU-2019:1547-1OPENSUSE-SU-2019:1814-1OPENSUSE-SU-2024:11468-1OPENSUSE-SU-2024:11501-1

Timeline

  1. 04-10-2018
    PublishedVulnerability first disclosed.
  2. 15-10-2026
    Last modifiedVulnerability information updated.

Description

When the default servlet in Apache Tomcat versions 9.0.0.M1 to 9.0.11, 8.5.0 to 8.5.33 and 7.0.23 to 7.0.90 returned a redirect to a directory (e.g. redirecting to '/foo/' when the user requested '/foo') a specially crafted URL could be used to cause the redirect to be generated to any URI of the attackers choice.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

97.68%

Chance of exploitation in the next 30 days

Percentile

100%

Versus all other CVEs

30-day change

No change 0.00 pp

From 97.68% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

1 found
  • exploit-databasemultipleUnverified

    Apache Tomcat 9.0.0.M1 - Open Redirect

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, user interaction (CVSS vector). Other conditions: not stated in public data.

Redhat16 products
Oracle5 products
Suse5 products
  • tomcat6&distro=SUSE Linux Enterprise Server 11 SP4< 6.0.53-0.57.10.1
  • tomcat6&distro=SUSE Linux Enterprise Server for SAP Applications 11 SP4< 6.0.53-0.57.10.1
  • tomcat&distro=SUSE Linux Enterprise Module for Web and Scripting 15< 9.0.12-3.8.3
  • tomcat&distro=SUSE Linux Enterprise Server 12 SP3< 8.0.53-29.16.2
  • tomcat&distro=SUSE Linux Enterprise Server for SAP Applications 12 SP3< 8.0.53-29.16.2
Debian3 products
  • tomcat7< 7.0.56-3+really7.0.91-1
  • tomcat8< 8.0.14-1+deb8u14
  • debian_linuxEOL8.0
Ubuntu3 products
  • tomcat6All versions (No fix recorded)
  • tomcat7All versions (No fix recorded) | < 7.0.52-1ubuntu0.16
  • tomcat8< 8.5.39-1ubuntu1~18.04.1 | < 8.0.32-1ubuntu1.8
Apache1 product
  • tomcat≥ 7.0.23, ≤ 7.0.90 | ≥ 8.5.0, ≤ 8.5.33 | ≥ 9.0.1, ≤ 9.0.11 | 9.0.0 | 9.0.0:milestone1 | 9.0.0:milestone10 | 9.0.0:milestone11 | 9.0.0:milestone12 | 9.0.0:milestone13 | 9.0.0:milestone14 | 9.0.0:milestone15 | 9.0.0:milestone16 | 9.0.0:milestone17 | 9.0.0:milestone18 | 9.0.0:milestone19 | 9.0.0:milestone2 | 9.0.0:milestone20 | 9.0.0:milestone21 | 9.0.0:milestone22 | 9.0.0:milestone23 | 9.0.0:milestone24 | 9.0.0:milestone25 | 9.0.0:milestone26 | 9.0.0:milestone27 | 9.0.0:milestone3 | 9.0.0:milestone4 | 9.0.0:milestone5 | 9.0.0:milestone6 | 9.0.0:milestone7 | 9.0.0:milestone8 | 9.0.0:milestone9
Apache software foundation1 product
  • apache tomcat9.0.0.M1 to 9.0.11 | 8.5.0 to 8.5.33 | 7.0.23 to 7.0.90
Canonical1 product
Netapp1 product
Org.apache.tomcat.embed1 product
  • tomcat-embed-core≥ 8.5.0, < 8.5.34 | ≥ 7.0.23, < 7.0.91 | ≥ 9.0.0, < 9.0.12

10 vendors · 37 products

References

82 links
Show all 82 references