Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-32144— OCSP designated-responder authorization bypass via missing signature verification

Quick assessment

Affected
Erlang OTP
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Erlang/OTP是Erlang/OTP开源的一个JavaScript编写的处理处理异常的库。该库可以捕捉node.js内置API引发的异常。 Erlang/OTP 28.4.2之前版本和27.3.4.10之前版本存在安全漏洞，该漏洞源于证书验证不当，可能导致OCSP指定响应者授权绕过。

CVSS 7.6 · High EPSS 0.32% · P22

Affected Version Matrix 4

VendorProduct Version RangeStatus
Erlang OTP 1.16< * affected
11.2< * affected
27.0< * affected
601a012837ea0a5c8095bf24223132824177124d< * affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-32144

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
OCSP designated-responder authorization bypass via missing signature verification
Source: CVE Program / CVE List V5
Vulnerability Description
Improper Certificate Validation vulnerability in Erlang OTP public_key (pubkey_ocsp module) allows OCSP designated-responder authorization bypass via missing signature verification. The OCSP response validation in public_key:pkix_ocsp_validate/5 does not verify that a CA-designated responder certificate was cryptographically signed by the issuing CA. Instead, it only checks that the responder certificate's issuer name matches the CA's subject name and that the certificate has the OCSPSigning extended key usage. An attacker who can intercept or control OCSP responses can create a self-signed certificate with a matching issuer name and the OCSPSigning EKU, and use it to forge OCSP responses that mark revoked certificates as valid. This affects SSL/TLS clients using OCSP stapling, which may accept connections to servers with revoked certificates, potentially transmitting sensitive data to compromised servers. Applications using the public_key:pkix_ocsp_validate/5 API directly are also affected, with impact depending on usage context. This vulnerability is associated with program files lib/public_key/src/pubkey_ocsp.erl and program routines pubkey_ocsp:is_authorized_responder/3. This issue affects OTP from OTP 27.0 before OTP 28.4.2 and OTP 27.3.4.10, corresponding to public_key from 1.16 before 1.20.3 and 1.17.1.2, and ssl from 11.2 before 11.5.4 and 11.2.12.7.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
证书验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Erlang/OTP 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Erlang/OTP是Erlang/OTP开源的一个JavaScript编写的处理处理异常的库。该库可以捕捉node.js内置API引发的异常。 Erlang/OTP 28.4.2之前版本和27.3.4.10之前版本存在安全漏洞，该漏洞源于证书验证不当，可能导致OCSP指定响应者授权绕过。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Erlang OTP 1.16 ~ * cpe:2.3:a:erlang:erlang\/otp:*:*:*:*:*:*:*:*
Erlang OTP 11.2 ~ * cpe:2.3:a:erlang:erlang\/otp:*:*:*:*:*:*:*:*
Erlang OTP 27.0 ~ * cpe:2.3:a:erlang:erlang\/otp:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-32144

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-32144

请登录查看更多情报信息。

Patches & Fixes for CVE-2026-32144 (2)

Vendor Advisories for CVE-2026-32144 (3)

Same Patch Batch · Erlang · 2026-04-07 · 3 CVEs total

CVE-2026-28808 8.3 HIGH ScriptAlias CGI targets bypass directory auth in inets httpd (mod_auth vs mod_cgi path mis
CVE-2026-28810 6.3 MEDIUM Predictable DNS Transaction IDs Enable Cache Poisoning in Built-in Resolver

IV. Related Vulnerabilities

Same product: OTP
Same vendor: Erlang
Same weakness: CWE-295

V. Comments for CVE-2026-32144

No comments yet

Leave a comment