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CVE-2023-23621

🗓️ 23 May 2025 03:19:03Reported by redhat.comType 
redhatcve
 redhatcve
🔗 access.redhat.com👁 16 Views

Discourse suffers regex denial of service via crafted user agent; patch in stable 3.0.1 and beta 3.1.0.beta2; no workarounds.

Related
Refs
ReporterTitlePublishedViews
Family
bdu_fstec
BDU FSTEC
Discourse Regular Expression DoS
7 Mar 202300:00
–bdu_fstec
circl
Circl
CVE-2023-23621
28 Jan 202302:34
–circl
cnnvd
CNNVD
Discourse security vulnerabilities
27 Jan 202300:00
–cnnvd
cve
CVE
CVE-2023-23621
27 Jan 202323:31
–cve
cvelist
Cvelist
CVE-2023-23621 Discourse vulnerable to ReDoS in user agent parsing
27 Jan 202323:31
–cvelist
euvd
EUVD
EUVD-2023-27715
3 Oct 202520:07
–euvd
nvd
NVD
CVE-2023-23621
28 Jan 202300:15
–nvd
openvas
OpenVAS
Discourse 3.1.x < 3.1.0.beta2 Multiple Vulnerabilities
27 Jan 202300:00
–openvas
openvas
OpenVAS
Discourse < 3.0.1 Multiple Vulnerabilities
27 Jan 202300:00
–openvas
osv_bit
osv_bit
BIT-DISCOURSE-2023-23621 Discourse vulnerable to ReDoS in user agent parsing
6 Mar 202411:00
–osv_bit
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06 Oct 2025 10:55Current
7.5High risk
Vulners AI Score7.5
CVSS 3.17.5 - 8.6
EPSS0.00868
SSVC
16