CVE-2018-6596
Django-Anymail prone to a timing attack
CVE-2018-6596 is a critical vulnerability (CVSS 9.1) in Django-anymail Project Django-anymail, published February 3, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.61%, the 85th percentile. Fixed in django-anymail 1.2.1.
- Severity
- 9.1 CriticalCVSS 3.0, NVD
- Exploit chance
- 2.61%EPSS, 85th percentile
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
1.2.1django-anymail +5 more
Description
webhooks/base.py in Anymail (aka django-anymail) before 1.2.1 is prone to a timing attack vulnerability on the WEBHOOK_AUTHORIZATION secret, which allows remote attackers to post arbitrary e-mail tracking events.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- None
Exploit likelihood
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
django-anymailPyPI | before 1.2.1 | 1.2.1 |
django-anymailDebian:12 | before 1.3-1 | 1.3-1 |
django-anymailDebian:13 | before 1.3-1 | 1.3-1 |
django-anymailDebian:14 | before 1.3-1 | 1.3-1 |
django-anymailDebian:9 | before 0.8-2+deb9u1, plus listed versions 0.6.1-10.7-10.8-10.8-2 | 0.8-2+deb9u1 |
django-anymailPyPI | before 1.2.1, plus listed versions 0.10.1.dev00.1.dev10.1.dev20.10 Show 17 moreShow less0.110.11.10.20.30.3.10.4.10.4.20.50.60.6.10.70.80.91.01.0rc01.11.2 | 1.2.1 |
What each source reports
NVD Score used
webhooks/base.py in Anymail (aka django-anymail) before 1.2.1 is prone to a timing attack vulnerability on the WEBHOOK_AUTHORIZATION secret, which allows remote attackers to post arbitrary e-mail tracking events.
- Record
CVE-2018-6596- CVSS 3.0
- 9.1 Critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N - CVSS 2.0
- 6.4 Medium
AV:N/AC:L/Au:N/C:P/I:P/A:N - Weakness
- CWE-200
- Updated
- 2026-11-02
CVE ListNo score
webhooks/base.py in Anymail (aka django-anymail) before 1.2.1 is prone to a timing attack vulnerability on the WEBHOOK_AUTHORIZATION secret, which allows remote attackers to post arbitrary e-mail tracking events.
- Record
CVE-2018-6596- Updated
- 2026-11-02
EUVDEUVD-2018-0034No score
webhooks/base.py in Anymail (aka django-anymail) before 1.2.1 is prone to a timing attack vulnerability on the WEBHOOK_AUTHORIZATION secret, which allows remote attackers to post arbitrary e-mail tracking events.
- Record
EUVD-2018-0034- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-hxf9-7h4c-f5jv
Django-Anymail prone to a timing attack
webhooks/base.py in Anymail (aka django-anymail) before 1.2.1 is prone to a timing attack vulnerability on the WEBHOOK_AUTHORIZATION secret, which allows remote attackers to post arbitrary e-mail tracking events.
- Record
GHSA-hxf9-7h4c-f5jv- CVSS 4.0
- 9.3 Critical
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N - CVSS 3.0
- 9.1 Critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N - Weakness
- CWE-200
- Updated
- 2026-11-02
OSV
webhooks/base.py in Anymail (aka django-anymail) before 1.2.1 is prone to a timing attack vulnerability on the WEBHOOK_AUTHORIZATION secret, which allows remote attackers to post arbitrary e-mail tracking events.
- Record
CVE-2018-6596- CVSS 3.0
- 9.1 Critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N - Updated
- 2026-11-02
OSVDEBIAN-CVE-2018-6596
webhooks/base.py in Anymail (aka django-anymail) before 1.2.1 is prone to a timing attack vulnerability on the WEBHOOK_AUTHORIZATION secret, which allows remote attackers to post arbitrary e-mail tracking events.
- Record
DEBIAN-CVE-2018-6596- CVSS 3.0
- 9.1 Critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N - Updated
- 2026-11-02
OSVGHSA-hxf9-7h4c-f5jv
Django-Anymail prone to a timing attack
webhooks/base.py in Anymail (aka django-anymail) before 1.2.1 is prone to a timing attack vulnerability on the WEBHOOK_AUTHORIZATION secret, which allows remote attackers to post arbitrary e-mail tracking events.
- Record
GHSA-hxf9-7h4c-f5jv- CVSS 4.0
- 9.3 Critical
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N - CVSS 3.0
- 9.1 Critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N - Weakness
- CWE-200
- Updated
- 2026-11-02
OSVUBUNTU-CVE-2018-6596
webhooks/base.py in Anymail (aka django-anymail) before 1.2.1 is prone to a timing attack vulnerability on the WEBHOOK_AUTHORIZATION secret, which allows remote attackers to post arbitrary e-mail tracking events.
- Record
UBUNTU-CVE-2018-6596- CVSS 3.0
- 9.1 Critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N - Updated
- 2026-11-02
OSVPYSEC-2018-7No score
webhooks/base.py in Anymail (aka django-anymail) before 1.2.1 is prone to a timing attack vulnerability on the WEBHOOK_AUTHORIZATION secret, which allows remote attackers to post arbitrary e-mail tracking events.
- Record
PYSEC-2018-7- Updated
- 2026-11-02
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | ||
| affected | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
References
debian.org/security/2018/dsa-4107
github.com/anymail/django-anymail/commit/c07998304b4a31df4c61deddcb03d3607a04691b
bugs.debian.org/889450
Show 7 moreShow less
nvd.nist.gov/vuln/detail/CVE-2018-6596
security-tracker.debian.org/tracker/CVE-2018-6596
ubuntu.com/security/CVE-2018-6596
cve.org/CVERecord?id=CVE-2018-6596