CVE-2026-73196: freeipa
Vulnerability summary
CVE-2026-73196 is a medium (CVSS 6.5) vulnerability in freeipa. EPSS estimates a 0.43% chance of exploitation in the next 30 days, higher than 35.5% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 0 · Related 1Timeline
- 20-08-2026PublishedVulnerability first disclosed.
- 20-08-2026Last modifiedVulnerability information updated.
Description
A flaw was found in FreeIPA. A low-privilege authenticated user can exploit this vulnerability by submitting an oversized One-Time Password (OTP) key value. This oversized key is then decoded and re-encoded without proper size limits, consuming excessive CPU and memory resources. This can lead to a denial of service, degrading the availability of the IPA service.
CVSS metrics
5 scores · 5 sources · 1 version- CVE.orgCNA4.3MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:LDiffers
- OSV · UbuntuEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · ChainguardEcosystem advisory · calculated4.3MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:LDiffers
EPSS trend
Probability
0.43%
Chance of exploitation in the next 30 days
Percentile
36%
Versus all other CVEs
30-day change
+0.18 pp
From 0.24% on 20-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Chainguard8 products
- freeipa< 4.13.3-r0
- freeipa-doc< 4.13.3-r0
- py3.13-ipaclient< 4.13.3-r0
- py3.13-ipalib< 4.13.3-r0
- py3.13-ipaplatform< 4.13.3-r0
Debian1 product
- freeipaAll versions (No fix recorded)
Freeipa1 product
- freeipa< 4.13.3
Redhat1 product
- enterprise_linuxEOL6.0 | 7.0 | 8.0 | 9.0 | 10.0
Ubuntu1 product
- freeipaAll versions (No fix recorded)
5 vendors · 12 products
