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CVE-2016-9452

Drupal Denial of service via transliterate mechanism

6.5 MediumFix available

The transliterate mechanism in Drupal 8.x before 8.2.3 allows remote attackers to cause a denial of service via a crafted URL.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
Required

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
High

Exploit likelihood

1.72%Up 0.7 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 6.5

The transliterate mechanism in Drupal 8.x before 8.2.3 allows remote attackers to cause a denial of service via a crafted URL.

Record
CVE-2016-9452
CVSS 3.0
6.5 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CVSS 2.0
4.3 MediumAV:N/AC:M/Au:N/C:N/I:N/A:P
Weakness
CWE-20
Updated
2026-11-02
CVE List No score

The transliterate mechanism in Drupal 8.x before 8.2.3 allows remote attackers to cause a denial of service via a crafted URL.

Record
CVE-2016-9452
Updated
2026-11-02
EUVDEUVD-2022-4409 No score

The transliterate mechanism in Drupal 8.x before 8.2.3 allows remote attackers to cause a denial of service via a crafted URL.

Record
EUVD-2022-4409
Updated
2026-11-03
GitHub AdvisoriesGHSA-jpj8-49hr-wcwv 6.5

Drupal Denial of service via transliterate mechanism

The transliterate mechanism in Drupal 8.x before 8.2.3 allows remote attackers to cause a denial of service via a crafted URL.

Record
GHSA-jpj8-49hr-wcwv
CVSS 3.0
6.5 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness
CWE-20
Updated
2026-11-02
OSV 6.5

The transliterate mechanism in Drupal 8.x before 8.2.3 allows remote attackers to cause a denial of service via a crafted URL.

Record
CVE-2016-9452
CVSS 3.0
6.5 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVGHSA-jpj8-49hr-wcwv 6.5

Drupal Denial of service via transliterate mechanism

The transliterate mechanism in Drupal 8.x before 8.2.3 allows remote attackers to cause a denial of service via a crafted URL.

Record
GHSA-jpj8-49hr-wcwv
CVSS 3.0
6.5 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness
CWE-20
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
drupal/core
Packagist
 8.0 up to 8.2.3
8.2.3
drupal/drupal
Packagist
 8.0 up to 8.2.3
8.2.3
drupal/core
Packagist
 8.0 up to 8.2.3, plus listed versions
8.0.08.0.0-beta108.0.0-beta118.0.0-beta128.0.0-beta13
Show 39 moreShow less
8.0.0-beta148.0.0-beta158.0.0-beta168.0.0-beta68.0.0-beta78.0.0-beta88.0.0-beta98.0.0-rc18.0.0-rc28.0.0-rc38.0.0-rc48.0.18.0.28.0.38.0.48.0.58.0.68.1.08.1.0-beta18.1.0-beta28.1.0-rc18.1.18.1.108.1.28.1.38.1.48.1.58.1.68.1.78.1.88.1.98.2.08.2.0-beta18.2.0-beta28.2.0-beta38.2.0-rc18.2.0-rc28.2.18.2.2
8.2.3
drupal/drupal
Packagist
 8.0 up to 8.2.3, plus listed versions
8.0.08.0.0-alpha148.0.0-alpha158.0.0-beta18.0.0-beta10
Show 45 moreShow less
8.0.0-beta118.0.0-beta128.0.0-beta138.0.0-beta148.0.0-beta158.0.0-beta168.0.0-beta28.0.0-beta38.0.0-beta48.0.0-beta58.0.0-beta68.0.0-beta78.0.0-beta98.0.0-rc18.0.0-rc28.0.0-rc38.0.0-rc48.0.18.0.28.0.38.0.48.0.58.0.68.1.08.1.0-beta18.1.0-beta28.1.0-rc18.1.18.1.108.1.28.1.38.1.48.1.58.1.68.1.78.1.88.1.98.2.08.2.0-beta18.2.0-beta28.2.0-beta38.2.0-rc18.2.0-rc28.2.18.2.2
8.2.3

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2016-9452 is a medium vulnerability (CVSS 6.5) in Drupal, published November 25, 2016. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.72%, the 77th percentile. Fixed in drupal/core 8.2.3.

References

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