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Back to active CVEs
High · CVSS 7.7CVE-2026-121890

Adobe Connect | Improper Restriction of XML External Entity Reference ('XXE') (CWE-611)CVE-2026-121890

Answer in brief

CVE-2026-121890 records a High severity (CVSS 7.7) vulnerability in Adobe Connect | Improper Restriction of XML External Entity Reference ('XXE') (CWE-611). The current sources do not mark it as known exploited. The current feed maps Adobe/Adobe Connect (generic), Adobe/Adobe Connect (generic), Adobe/Adobe Connect (generic), Adobe/Adobe Connect (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.

Analysis pending evidence review

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

Published Nov 10, 2026Updated Nov 10, 2026Source checked Nov 10, 2026First seen by HOL Nov 10, 2026Material review Nov 10, 2026
Upstream Advisory

Key facts

Risk
High · CVSS 7.7
Exploitation
Not marked as known exploited
Affected software
5 mapped packages or products
Fix availability
Not reported

Why this deserves its current priority

CVSS is 7.7. 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 Adobe/Adobe Connect (generic), Adobe/Adobe Connect (generic), Adobe/Adobe Connect (generic), Adobe/Adobe Connect (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Adobe/Adobe Connectgeneric>=0 <=12.8Not reported
Adobe/Adobe Connectgeneric>=0 <=12.9Not reported
Adobe/Adobe Connectgeneric>=0 <=12.10Not reported
Adobe/Adobe Connectgeneric>=0 <=12.11Not reported
Adobe/Adobe Connectgeneric>=0 <=12.12Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Adobe/Adobe Connect, Adobe/Adobe Connect, Adobe/Adobe Connect.
  2. 2Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

  1. Published upstream

    Nov 10, 2026

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

  2. Source modified

    Nov 10, 2026

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

  3. First seen by HOL

    Nov 10, 2026

Sources and claim methodology

  • Source referenceadobe.com
Upstream source description

Adobe Connect is affected by an Improper Restriction of XML External Entity Reference ('XXE') vulnerability that could lead to arbitrary file system read. A low-privileged attacker could exploit this vulnerability to access sensitive files and directories outside the intended access scope. Exploitation of this issue does not require user interaction. Scope is changed.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Adobe Connect | Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') (CWE-22)Same adobe/adobe connect package
  • Adobe Connect | Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') (CWE-89)Same adobe/adobe connect package
  • Adobe Connect | Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') (CWE-22)Same adobe/adobe connect package
  • Adobe Connect | Incorrect Authorization (CWE-863)Same adobe/adobe connect package
  • Adobe Connect | Improper Neutralization of CRLF Sequences ('CRLF Injection') (CWE-93)Same adobe/adobe connect package
  • Adobe Connect | Incorrect Authorization (CWE-863)Same adobe/adobe connect package

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
CWE-611
Source
CVE List V5
Source checked
Nov 10, 2026
References
1 linked source
Open source record