5.8

CVE-2013-4286: apache tomcat Improper Input Validation

Modified
AliasesUBUNTU-CVE-2013-4286GHSA-j448-j653-r3vj
Published 26-02-2014Last modified 09-10-2026

Vulnerability summary

CVE-2013-4286 is a medium (CVSS 5.8) Improper Input Validation vulnerability in apache tomcat. EPSS estimates a 16.21% chance of exploitation in the next 30 days, higher than 96.9% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 5.8, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
5.8/10
010
Medium · v2.0 (NVD)
EPSS score
16.21%
0%100%
Medium · -0.63 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 11 · Duplicates 1
DLA-91-1DSA-2897-1DSA-3530-1MGASA-2014-0148MGASA-2014-0149RHSA-2014:0343

Timeline

  1. 26-02-2014
    PublishedVulnerability first disclosed.
  2. 09-10-2026
    Last modifiedVulnerability information updated.

Description

Apache Tomcat before 6.0.39, 7.x before 7.0.47, and 8.x before 8.0.0-RC3, when an HTTP connector or AJP connector is used, does not properly handle certain inconsistent HTTP request headers, which allows remote attackers to trigger incorrect identification of a request's length and conduct request-smuggling attacks via (1) multiple Content-Length headers or (2) a Content-Length header and a "Transfer-Encoding: chunked" header. NOTE: this vulnerability exists because of an incomplete fix for CVE-2005-2090.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

16.21%

Chance of exploitation in the next 30 days

Percentile

97%

Versus all other CVEs

30-day change

Decrease -0.63 pp

From 16.83% 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

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

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

Ubuntu2 products
  • tomcat6< 6.0.39-1
  • tomcat7< 7.0.52-1
Apache1 product
  • tomcatEOL7.0.0 | 7.0.0:beta | 7.0.1 | 7.0.2 | 7.0.2:beta | 7.0.3 | 7.0.4 | 7.0.4:beta | 7.0.10 | 7.0.11 | 7.0.12 | 7.0.13 | 7.0.14 | 7.0.15 | 7.0.16 | 7.0.17 | 7.0.18 | 7.0.19 | 7.0.20 | 7.0.21 | 7.0.22 | 7.0.23 | 7.0.24 | 7.0.25 | 7.0.26 | 7.0.27 | 7.0.28 | 7.0.29 | 7.0.30 | 7.0.31 | 7.0.32 | 7.0.33 | 7.0.34 | 7.0.35 | 7.0.36 | 7.0.37 | 7.0.38 | 7.0.39 | 7.0.40 | 7.0.41 | 7.0.42 | 7.0.43 | 7.0.44 | 7.0.45 | 7.0.46 | 8.0.0:rc1 | 8.0.0:rc2 | ≤ 6.0.37 | 1.1.3 | 3.0 | 3.1 | 3.1.1 | 3.2 | 3.2.1 | 3.2.2 | 3.2.2:beta2 | 3.2.3 | 3.2.4 | 3.3 | 3.3.1 | 3.3.1a | 3.3.2 | 4 | 4.0.0 | 4.0.1 | 4.0.2 | 4.0.3 | 4.0.4 | 4.0.5 | 4.0.6 | 4.1.0 | 4.1.1 | 4.1.2 | 4.1.3 | 4.1.3:beta | 4.1.9:beta | 4.1.10 | 4.1.12 | 4.1.15 | 4.1.24 | 4.1.28 | 4.1.29 | 4.1.31 | 4.1.36 | 5 | 5.0.0 | 5.0.1 | 5.0.2 | 5.0.3 | 5.0.4 | 5.0.5 | 5.0.6 | 5.0.7 | 5.0.8 | 5.0.9 | 5.0.10 | 5.0.11 | 5.0.12 | 5.0.13 | 5.0.14 | 5.0.15 | 5.0.16 | 5.0.17 | 5.0.18 | 5.0.19 | 5.0.21 | 5.0.22 | 5.0.23 | 5.0.24 | 5.0.25 | 5.0.26 | 5.0.27 | 5.0.28 | 5.0.29 | 5.0.30 | 5.5.0 | 5.5.1 | 5.5.2 | 5.5.3 | 5.5.4 | 5.5.5 | 5.5.6 | 5.5.7 | 5.5.8 | 5.5.9 | 5.5.10 | 5.5.11 | 5.5.12 | 5.5.13 | 5.5.14 | 5.5.15 | 5.5.16 | 5.5.17 | 5.5.18 | 5.5.19 | 5.5.20 | 5.5.21 | 5.5.22 | 5.5.23 | 5.5.24 | 5.5.25 | 5.5.26 | 5.5.27 | 5.5.28 | 5.5.29 | 5.5.30 | 5.5.31 | 5.5.32 | 5.5.33 | 5.5.34 | 5.5.35 | 6 | 6.0 | 6.0.0 | 6.0.0:alpha | 6.0.1 | 6.0.1:alpha | 6.0.2 | 6.0.2:alpha | 6.0.2:beta | 6.0.3 | 6.0.10 | 6.0.11 | 6.0.12 | 6.0.13 | 6.0.14 | 6.0.15 | 6.0.16 | 6.0.17 | 6.0.18 | 6.0.19 | 6.0.20 | 6.0.24 | 6.0.26 | 6.0.27 | 6.0.28 | 6.0.29 | 6.0.30 | 6.0.31 | 6.0.32 | 6.0.33 | 6.0.35 | 6.0.36
Org.apache.tomcat1 product
  • tomcat< 6.0.39 | ≥ 7.0.0, < 7.0.47 | ≥ 8.0.0-RC1, < 8.0.0-RC3

3 vendors · 4 products

References

75 links
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