CVE-2018-1000858
GnuPG version 2.1.12 - 2.2.11 contains a Cross ite Request Forgery (CSRF) vulnerability in...
GnuPG version 2.1.12 - 2.2.11 contains a Cross ite Request Forgery (CSRF) vulnerability in dirmngr that can result in Attacker controlled CSRF, Information Disclosure, DoS. This attack appear to be exploitable via Victim must perform a WKD request, e.g. enter an email address in the composer window of Thunderbird/Enigmail. This vulnerability appears to have been fixed in after commit 4a4bb874f63741026bd26264c43bb32b1099f060.
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
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
GnuPG version 2.1.12 - 2.2.11 contains a Cross ite Request Forgery (CSRF) vulnerability in dirmngr that can result in Attacker controlled CSRF, Information Disclosure, DoS. This attack appear to be exploitable via Victim must perform a WKD request, e.g. enter an email address in the composer window of Thunderbird/Enigmail. This vulnerability appears to have been fixed in after commit 4a4bb874f63741026bd26264c43bb32b1099f060.
- Record
CVE-2018-1000858- CVSS 3.0
- 8.8 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - CVSS 2.0
- 6.8 Medium
AV:N/AC:M/Au:N/C:P/I:P/A:P - Weakness
- CWE-352
- Updated
- 2026-11-02
CVE List No score
GnuPG version 2.1.12 - 2.2.11 contains a Cross ite Request Forgery (CSRF) vulnerability in dirmngr that can result in Attacker controlled CSRF, Information Disclosure, DoS. This attack appear to be exploitable via Victim must perform a WKD request, e.g. enter an email address in the composer window of Thunderbird/Enigmail. This vulnerability appears to have been fixed in after commit 4a4bb874f63741026bd26264c43bb32b1099f060.
- Record
CVE-2018-1000858- Updated
- 2026-11-02
EUVDEUVD-2018-2043 No score
GnuPG version 2.1.12 - 2.2.11 contains a Cross ite Request Forgery (CSRF) vulnerability in dirmngr that can result in Attacker controlled CSRF, Information Disclosure, DoS. This attack appear to be exploitable via Victim must perform a WKD request, e.g. enter an email address in the composer window of Thunderbird/Enigmail. This vulnerability appears to have been fixed in after commit 4a4bb874f63741026bd26264c43bb32b1099f060.
- Record
EUVD-2018-2043- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-44cw-f8qw-mf2h
GnuPG version 2.1.12 - 2.2.11 contains a Cross ite Request Forgery (CSRF) vulnerability in...
GnuPG version 2.1.12 - 2.2.11 contains a Cross ite Request Forgery (CSRF) vulnerability in dirmngr that can result in Attacker controlled CSRF, Information Disclosure, DoS. This attack appear to be exploitable via Victim must perform a WKD request, e.g. enter an email address in the composer window of Thunderbird/Enigmail. This vulnerability appears to have been fixed in after commit 4a4bb874f63741026bd26264c43bb32b1099f060.
- Record
GHSA-44cw-f8qw-mf2h- CVSS 3.0
- 8.8 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-352
- Updated
- 2026-11-02
OSV
GnuPG version 2.1.12 - 2.2.11 contains a Cross ite Request Forgery (CSRF) vulnerability in dirmngr that can result in Attacker controlled CSRF, Information Disclosure, DoS. This attack appear to be exploitable via Victim must perform a WKD request, e.g. enter an email address in the composer window of Thunderbird/Enigmail. This vulnerability appears to have been fixed in after commit 4a4bb874f63741026bd26264c43bb32b1099f060.
- Record
CVE-2018-1000858- CVSS 3.0
- 8.8 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVDEBIAN-CVE-2018-1000858
GnuPG version 2.1.12 - 2.2.11 contains a Cross ite Request Forgery (CSRF) vulnerability in dirmngr that can result in Attacker controlled CSRF, Information Disclosure, DoS. This attack appear to be exploitable via Victim must perform a WKD request, e.g. enter an email address in the composer window of Thunderbird/Enigmail. This vulnerability appears to have been fixed in after commit 4a4bb874f63741026bd26264c43bb32b1099f060.
- Record
DEBIAN-CVE-2018-1000858- CVSS 3.0
- 8.8 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
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OSVRHSA-2020:4490
Red Hat Security Advisory: gnupg2 security, bug fix, and enhancement update
- Record
RHSA-2020:4490- CVSS 3.0
- 6.5 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVRLSA-2020:4490
Moderate: gnupg2 security, bug fix, and enhancement update
The GNU Privacy Guard (GnuPG or GPG) is a tool for encrypting data and creating digital signatures, compliant with OpenPGP and S/MIME standards.
The following packages have been upgraded to a later upstream version: gnupg2 (2.2.20). (BZ#1663944)
Security Fix(es):
- GnuPG: interaction between the sks-keyserver code and GnuPG allows for a Certificate Spamming Attack which leads to persistent DoS (CVE-2019-13050)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Additional Changes:
For detailed information on changes in this release, see the Rocky Linux 8.3 Release Notes linked from the References section.
- Record
RLSA-2020:4490- CVSS 3.0
- 6.5 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVUBUNTU-CVE-2018-1000858
GnuPG version 2.1.12 - 2.2.11 contains a Cross ite Request Forgery (CSRF) vulnerability in dirmngr that can result in Attacker controlled CSRF, Information Disclosure, DoS. This attack appear to be exploitable via Victim must perform a WKD request, e.g. enter an email address in the composer window of Thunderbird/Enigmail. This vulnerability appears to have been fixed in after commit 4a4bb874f63741026bd26264c43bb32b1099f060.
- Record
UBUNTU-CVE-2018-1000858- CVSS 3.0
- 8.8 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVALSA-2020:4490 No score
Moderate: gnupg2 security, bug fix, and enhancement update
The GNU Privacy Guard (GnuPG or GPG) is a tool for encrypting data and creating digital signatures, compliant with OpenPGP and S/MIME standards.
The following packages have been upgraded to a later upstream version: gnupg2 (2.2.20). (BZ#1663944)
Security Fix(es):
- GnuPG: interaction between the sks-keyserver code and GnuPG allows for a Certificate Spamming Attack which leads to persistent DoS (CVE-2019-13050)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Additional Changes:
For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section.
- Record
ALSA-2020:4490- Updated
- 2026-11-02
OSVMGASA-2019-0108 No score
Updated gnupg2 packages fix security vulnerability
GnuPG version 2.1.12 - 2.2.11 contains a Cross ite Request Forgery (CSRF) vulnerability in dirmngr that can result in Attacker controlled CSRF, Information Disclosure, DoS. This attack appear to be exploitable via Victim must perform a WKD request, e.g. enter an email address in the composer window of Thunderbird/Enigmail. This vulnerability appears to have been fixed in after commit 4a4bb874f63741026bd26264c43bb32b1099f060. (CVE-2018-1000858)
- Record
MGASA-2019-0108- Updated
- 2026-11-02
OSVopenSUSE-SU-2019:0020-1 No score
Security update for gpg2
This update for gpg2 fixes the following issue:
Security issue fixed:
- CVE-2018-1000858: Fixed a Cross Site Request Forgery(CSRF) vulnerability in dirmngr that can result in Attacker controlled CSRF (bsc#1120346).
This update was imported from the SUSE:SLE-15:Update update project.
- Record
openSUSE-SU-2019:0020-1- Updated
- 2026-11-02
OSVSUSE-SU-2019:0023-1 No score
Security update for gpg2
This update for gpg2 fixes the following issue:
Security issue fixed:
- CVE-2018-1000858: Fixed a Cross Site Request Forgery(CSRF) vulnerability in dirmngr that can result in Attacker controlled CSRF (bsc#1120346).
- Record
SUSE-SU-2019:0023-1- Updated
- 2026-11-02
OSVUSN-3853-1 No score
gnupg2 vulnerability
Ben Fuhrmannek discovered that GnuPG incorrectly handled Web Key Directory lookups. A remote attacker could possibly use this issue to cause a denial of service, or perform Cross-Site Request Forgery attacks.
- Record
USN-3853-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
gnupg2AlmaLinux:8 From an advisory covering 2 CVEs |
before 2.2.20-2.el8 | 2.2.20-2.el8 |
gnupg2-smimeAlmaLinux:8 From an advisory covering 2 CVEs |
before 2.2.20-2.el8 | 2.2.20-2.el8 |
gnupg2Debian:12 |
before 2.2.12-1 | 2.2.12-1 |
gnupg2Debian:13 |
before 2.2.12-1 | 2.2.12-1 |
gnupg2Debian:14 |
before 2.2.12-1 | 2.2.12-1 |
gnupg2Mageia:6 |
before 2.1.21-3.2.mga6 | 2.1.21-3.2.mga6 |
gnupg2Red Hat:enterprise_linux:8::baseos From an advisory covering 2 CVEs |
before 0:2.2.20-2.el8 | 0:2.2.20-2.el8 |
gnupg2-debuginfoRed Hat:enterprise_linux:8::baseos From an advisory covering 2 CVEs |
before 0:2.2.20-2.el8 | 0:2.2.20-2.el8 |
gnupg2-debugsourceRed Hat:enterprise_linux:8::baseos From an advisory covering 2 CVEs |
before 0:2.2.20-2.el8 | 0:2.2.20-2.el8 |
gnupg2-smimeRed Hat:enterprise_linux:8::baseos From an advisory covering 2 CVEs |
before 0:2.2.20-2.el8 | 0:2.2.20-2.el8 |
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| Package | Affected | Fixed |
|---|---|---|
gnupg2-smime-debuginfoRed Hat:enterprise_linux:8::baseos From an advisory covering 2 CVEs |
before 0:2.2.20-2.el8 | 0:2.2.20-2.el8 |
gnupg2Rocky Linux:8 From an advisory covering 2 CVEs |
before 0:2.2.20-2.el8 | 0:2.2.20-2.el8 |
gpg2SUSE:Linux Enterprise Module for Basesystem 15 |
before 2.2.5-4.6.2 | 2.2.5-4.6.2 |
gnupg2Ubuntu:18.04:LTS |
before 2.2.4-1ubuntu1.2, plus listed versions 2.1.15-1ubuntu82.2.4-1ubuntu12.2.4-1ubuntu1.1 |
2.2.4-1ubuntu1.2 |
gpg2openSUSE:Leap 15.0 |
before 2.2.5-lp150.3.6.1 | 2.2.5-lp150.3.6.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2018-1000858 is a high vulnerability (CVSS 8.8) in Gnupg, published December 20, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.04%, the 64th percentile. Fixed in gnupg2 2.2.12-1.
References
sektioneins.de/en/blog/18-11-23-gnupg-wkd.html
usn.ubuntu.com/3853-1
nvd.nist.gov/vuln/detail/CVE-2018-1000858
github.com/advisories/GHSA-44cw-f8qw-mf2h
errata.almalinux.org/8/ALSA-2020-4490.html
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vulners.com/cve/CVE-2018-1000858
security-tracker.debian.org/tracker/CVE-2018-1000858
advisories.mageia.org/MGASA-2019-0108.html
bugs.mageia.org/show_bug.cgi?id=24178
lists.opensuse.org/opensuse-security-announce/2019-01/msg00009.html
access.redhat.com/errata/RHSA-2020:4490
bugzilla.redhat.com/show_bug.cgi?id=1726146
security.access.redhat.com/data/csaf/v2/advisories/2020/rhsa-2020_4490.json
cve.org/CVERecord?id=CVE-2018-1000858
gist.github.com/rjhansen/67ab921ffb4084c865b3618d6955275f
errata.rockylinux.org/RLSA-2020:4490
suse.com/support/update/announcement/2019/suse-su-20190023-1
bugzilla.suse.com/1120346
ubuntu.com/security/CVE-2018-1000858