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Public proof of conceptFix available

CVE-2023-36661

A public proof of concept exists; no exploitation attested.

  • Published2023-06-25
  • WeaknessCWE-918

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

Shibboleth XMLTooling before 3.2.4, as used in OpenSAML and Shibboleth Service Provider, allows SSRF via a crafted KeyInfo element. (This is fixed in, for example, Shibboleth Service Provider 3.4.1.3 on Windows.)

Timeline

dates in UTC
  1. 2023-06-2522:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-11-03 21:37 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-2023-36661?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2023-36661?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Debian debian linux
BranchAffectedFixed in
11.0= 11.0no fix published
12.0= 12.0no fix published
Shibboleth xmltooling
BranchAffectedFixed in
3.2< 3.2.43.2.4

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

  • xmltoolingUbuntu:Pro:16.04:LTSall versions · fixed in 1.5.6-2ubuntu0.3+esm1
  • xmltoolingUbuntu:24.04:LTSall versions · no fixed version listed
  • xmltoolingUbuntu:22.04:LTSall versions · no fixed version listed
  • xmltoolingUbuntu:20.04:LTSall versions · no fixed version listed
  • xmltoolingUbuntu:18.04:LTSall versions · no fixed version listed
  • xmltoolingUbuntu:14.04:LTSall versions · no fixed version listed
  • xmltoolingSUSE:Manager Server 4.2all versions · fixed in 3.1.0-150300.3.3.1
  • xmltoolingSUSE:Manager Proxy 4.2all versions · fixed in 3.1.0-150300.3.3.1

19 more package ranges on OSV.dev

Vendor advisories

  • CVE-2023-36661 Red Hat Product Security3 known affected

    XMLTooling: SSRF via a crafted KeyInfo element

    XMLTooling as a component of Red Hat JBoss Data Virtualization 6 · XMLTooling as a component of Red Hat JBoss Enterprise Application Platform 6 · xmltooling as a component of Red Hat JBoss Fuse 6

Full record on NVD

Fix

  1. No fix planned, says the vendor Red Hat Product Security CVE-2023-36661 · 3 productsOut of support scope

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
1 moduleexploit/linux/http/ivanti_connect_secure_rce_cve_2024_21893rank: excellentModule metadata: Metasploit Framework, © Rapid7, Inc., BSD-3-Clause.
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published
2023-06-25
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-j522-236p-wx5g

Frequently asked questions

What is CVE-2023-36661?

Shibboleth XMLTooling before 3.2.4, as used in OpenSAML and Shibboleth Service Provider, allows SSRF via a crafted KeyInfo element. (This is fixed in, for example, Shibboleth Service Provider 3.4.1.3 on Windows.)

Is CVE-2023-36661 actively exploited?

Active exploitation of CVE-2023-36661 has not been confirmed. Its EPSS score was 2.9% on 2026-11-03, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2023-36661?

CVE-2023-36661 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

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Sources for this record