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Back to active CVEs
High · CVSS 7.4CVE-2026-13608

OpenLDAP SASL authentication bypassCVE-2026-13608

Answer in brief

CVE-2026-13608 records a High severity (CVSS 7.4) vulnerability in OpenLDAP SASL authentication bypass. The current sources do not mark it as known exploited. The current feed maps curl/curl (generic), curl/curl (generic), curl/curl (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 6, 2026Updated Sep 15, 2026Source checked Oct 21, 2026First seen by HOL Sep 6, 2026Material review Sep 15, 2026
Upstream Advisory

Key facts

Risk
High · CVSS 7.4
Exploitation
Not marked as known exploited
Affected software
4 mapped packages or products
Fix availability
Available

Why this deserves its current priority

CVSS is 7.4. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps curl/curl (generic), curl/curl (generic), curl/curl (generic). Check affected ranges and fixed versions before updating.

Affected products and reported versions
ProductAffected versionsFixed versions
cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:*Not reportedNot reported
Mapped affected packages and fixed versions
PackageAffected rangeFixed version
curl/curlgeneric8.21.0 || 8.20.0 || 8.19.0 || 8.18.0 || 8.17.0 || 8.16.0 || 8.15.0 || 8.14.1 || 8.14.0 || 8.13.0 || 8.12.1 || 8.12.0 || 8.11.1 || 8.11.0 || 8.10.1 || 8.10.0 || 8.9.1 || 8.9.0 || 8.8.0 || 8.7.1 || 8.7.0 || 8.6.0 || 8.5.0 || 8.4.0 || 8.3.0 || 8.2.1 || 8.2.0 || 8.1.2 || 8.1.1 || 8.1.0 || 8.0.1 || 8.0.0 || 7.88.1 || 7.88.0 || 7.87.0 || 7.86.0 || 7.85.0 || 7.84.0 || 7.83.1 || 7.83.0 || 7.82.0Not reported
curl/curlgeneric>=7.82.0 <8.14.2 || >=8.15.0 <8.16.1 || >=8.17.0 <8.20.1 || >=8.21.0 <8.22.08.14.2, 8.16.1, 8.20.1, 8.22.0
curl/curlgeneric>=eeca818b1e8d1e61c2d4d833aed56ce4c510a9d4 <ea71c3b6b60e563651ea8596a975aef0c8199519ea71c3b6b60e563651ea8596a975aef0c8199519

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for curl/curl, curl/curl, curl/curl.
  2. 2Review the reported fix. Update curl/curl to 8.14.2; curl/curl to ea71c3b6b60e563651ea8596a975aef0c8199519 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Sep 6, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Sep 15, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Sep 6, 2026

Sources and claim methodology

  • Source referencecurl.se
  • Source referencecurl.se
  • Source referencehackerone.com
Upstream source description

A flaw in the libcurl SASL negotiation for LDAP authentication allows an incomplete handshake sequence to be misinterpreted as a successful cryptographic verification. An attacker executing a Man-in-the-Middle (MITM) attack can inject a premature or shortcut response that bypasses complete peer validation.

Quoted source text, attributed separately from HOL analysis.

Record context

Vulnerability class
Missing Auth
EPSS
Not reported
CWE IDs
CWE-923
Source
CVE List V5
Source checked
Oct 21, 2026
References
3 linked sources
Open source record