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No exploitation reportedFix available

CVE-2021-32746

No exploitation reported by the sources we read.

  • Published2021-07-12
  • Fixed in2.8.3 · 2.7.5
  • WeaknessCWE-22

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Icinga Web 2 is an open source monitoring web interface, framework and command-line interface. Between versions 2.3.0 and 2.8.2, the `doc` module of Icinga Web 2 allows to view documentation directly in the UI. It must be enabled manually by an administrator and users need explicit access permission to use it. Then, by visiting a certain route, it is possible to gain access to arbitrary files readable by the web-server user. The issue has been fixed in the 2.9.0, 2.8.3, and 2.7.5 releases. As a workaround, an administrator may disable the `doc` module or revoke permission to use it from all users.

Timeline

dates in UTC
  1. 2021-07-1223:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-11-04 03:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2021-32746?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2021-32746?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Icinga
BranchAffectedFixed in
2.8≥ 2.8.0, < 2.8.32.8.3
2.x≥ 2.3.0, < 2.7.52.7.5

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • icingaweb2Ubuntu:26.10all versions · no fixed version listed
  • icingaweb2Ubuntu:26.04:LTSall versions · no fixed version listed
  • icingaweb2Ubuntu:25.10all versions · no fixed version listed
  • icingaweb2Ubuntu:24.04:LTSall versions · no fixed version listed
  • icingaweb2Ubuntu:22.04:LTSall versions · no fixed version listed
  • icingaweb2Ubuntu:20.04:LTSall versions · no fixed version listed
  • icingaweb2Ubuntu:18.04:LTSall versions · no fixed version listed
  • icingaweb2Ubuntu:16.04:LTSall versions · no fixed version listed

14 more package ranges on OSV.dev

Full record on NVD

Fix

  1. Update Icinga to 2.8.3 · 2.7.5

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub
Metasploit modules
none listed
Metasploit Framework

Sources

  • CNACVSS 3.15.3known since 2026-10-23
  • NVDCVSS 3.15.3read 2026-10-23
  • NVDCVSS 2.03.5read 2026-10-23
  • CNAweakness (CWE)CWE-22known since 2026-10-23
  • NVDweakness (CWE)CWE-22read 2026-10-23
  • FIRST EPSSEPSS score1.3 %2026-11-03
  • OSVaffected packages—

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Published
2021-07-12
Last Modified
2026-06-17
NVD status
Modified

Frequently asked questions

What is CVE-2021-32746?

Icinga Web 2 is an open source monitoring web interface, framework and command-line interface. Between versions 2.3.0 and 2.8.2, the `doc` module of Icinga Web 2 allows to view documentation directly in the UI. It must be enabled manually by an administrator and users need explicit access permission to use it. Then, by visiting a certain route, it is possible to gain access to arbitrary files readable by the web-server user. The issue has been fixed in the 2.9.0, 2.8.3, and 2.7.5 releases. As a workaround, an administrator may disable the `doc` module or revoke permission to use it from all users.

Is CVE-2021-32746 actively exploited?

Active exploitation of CVE-2021-32746 has not been confirmed. Its EPSS score was 1.3% on 2026-11-03, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-32746?

CVE-2021-32746 has a CVSS v3 base score of 5.3 (MEDIUM severity), with vector string CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N.

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Sources for this record