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AEGLIX vulnerability intelligence

CVE-2026-32144

HIGH · CVSS 7.6 · Modified

Published: 2026-04-07 · Updated: 2026-10-26 · Source: NVD

Stored catalog record

Source record retrieved 2026-10-28T10:18:37.006722+00:00. Scheduled imports handle updates; this page does not assert that the provider was queried just now.

Vulnerability overview

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.

Patch review priority

Assess exposure and vendor guidance

  • No higher-priority signal is available in the current stored evidence.

FIRST EPSS: 0.20% · percentile 9.7 · score date 2026-10-27.

EPSS estimates probability of exploitation in the next 30 days. It does not measure your exposure or prove exploitation. The elevated threshold is 10%; CISA KEV takes precedence. About FIRST EPSS ↗

Severity and scoring

CVSS score
7.6 · HIGH
CVSS version
4.0
CVSS vector
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Weaknesses
CWE-295, CWE-347

CVSS measures technical severity; it does not establish whether this vulnerability is being exploited in your environment.

Known exploitation and remediation

Not listed in the CISA catalog retrieved for this record. This does not establish that exploitation has not occurred.

Verify affected versions and patch availability in the vendor advisory before making changes.

Affected products and versions

  • cpe:2.3:a:erlang:erlang\/otp:*:*:*:*:*:*:*:*

    From (inclusive): 27.0

    Before (exclusive): 27.3.4.10

  • cpe:2.3:a:erlang:erlang\/otp:*:*:*:*:*:*:*:*

    From (inclusive): 28.0

    Before (exclusive): 28.4.2

  • cpe:2.3:a:erlang:erlang\/public_key:*:*:*:*:*:*:*:*

    From (inclusive): 1.16

    Before (exclusive): 1.17.1.2

  • cpe:2.3:a:erlang:erlang\/public_key:*:*:*:*:*:*:*:*

    From (inclusive): 1.18

    Before (exclusive): 1.20.3

  • cpe:2.3:a:erlang:erlang\/ssl:*:*:*:*:*:*:*:*

    From (inclusive): 11.2

    Before (exclusive): 11.2.12.7

  • cpe:2.3:a:erlang:erlang\/ssl:*:*:*:*:*:*:*:*

    After (exclusive): 11.3

    Before (exclusive): 11.5.4

These are NVD CPE applicability entries. Some products depend on configuration conditions; consult the official record to confirm applicability.

Advisories and references

Explore official sources

Read the official NVD record ↗

Explore the CISA catalog ↗

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