CVE-2026-4428Disclosure

LOWCVSS 9.1 · CRITICAL

Signal is active with 2 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

A logic error in CRL distribution point validation in AWS-LC before 1.71.0 causes partitioned CRLs to be incorrectly rejected as out of scope, which allows a revoked certificate to bypass certificate revocation checks. To remediate this issue, users should upgrade to AWS-LC 1.71.0 or AWS-LC-FIPS-3.3.0.

0.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-299

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

STABLE

Threat summary

  • 4 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Technical details provided in 4 signals
  • Disclosure: 4 classified signals
  • Peaked 1d ago at 2 mentions (2026-03-20); latest day: 2
  • 4 total mentions across 2 days

Deep dive

Activity timeline4 mentions / 2d
01122Mentions · 2026-03-20: 2Mentions · 2026-03-22: 2Technical Details · 2026-03-20: 2Technical Details · 2026-03-22: 203-2003-22
Signal classification1 categories
Disclosure
4100.0%
Referenced assets4 URLs
Full discourse4 posts
  • CVE@CVEnew
    Disclosure

    CVE-2026-4428 A logic error in CRL distribution point validation in AWS-LC before 1.71.0 causes partitioned CRLs to be incorrectly rejected as out of scope, which allows a revoked c… https://www.cve.org/CVERecord?id=CVE-2026-4428

    Post summary

    The text announces a new vulnerability (CVE-2026-4428) with technical details but lacks proof‑of‑concept, exploit code, or patch information.

    00010376
    56.8K followersView on X
  • Infoflowcloud@infoflowcloud
    Disclosure

    🚨*CVE* CVE-2026-4428 A logic error in CRL distribution point validation in AWS-LC before 1.71.0 causes partitioned CRLs to be incorrectly rejected as out of scope, which allows a revoked c… https://www.cve.org/CVERecord?id=CVE-2026-4428 ----- Traducción: CVE-2026-4428 Un … http://infoflow.cloud`

    Post summary

    The post announces CVE-2026-4428, describing a logic error in AWS‑LC’s CRL validation that misclassifies partitioned CRLs, with no evidence of exploitation or patch information.

    0000035
    61 followersView on X
  • Eyal Estrin ☁️@eyalestrin
    Disclosure

    CVE-2026-4428: Issues with AWS-LC - CRL Distribution Point Scope Check Logic Error http://dlvr.it/TRcMpc #patchmanagement

    Post summary

    CVE-2026-4428 describes a logic error in AWS‑LC’s CRL distribution point scope check, with no exploit or patch details provided in the snippet.

    0000041
    2.0K followersView on X
  • Alex Pulver@alex_pulver
    Disclosure

    CVE-2026-4428: Issues with AWS-LC - CRL Distribution Point Scope Check Logic Error https://aws.amazon.com/security/security-bulletins/2026-010-AWS/

    Post summary

    The snippet announces CVE-2026-4428 as a logic error in AWS-LC’s CRL Distribution Point scope check, with no evidence of exploitation, PoC, or patch within the text.

    0000044
    377 followersView on X

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