CVE-2026-9735: mongodb
CVSS: 6.8v4.0MediumAnalyzed
AliasesUBUNTU-CVE-2026-9735
Published 09-06-2026Last modified 10-06-2026
Vulnerability summary
CVE-2026-9735 is a medium (CVSS 6.8) vulnerability in mongodb. EPSS estimates a 0.17% chance of exploitation in the next 30 days, higher than 6.3% of scored vulnerabilities.
CVSS score
6.8/10
010
Medium · v4.0 (CVE.org)EPSS score
0.17%
0%100%
Low · +0.05 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 09-06-2026PublishedVulnerability first disclosed.
- 10-06-2026Last modifiedVulnerability information updated.
Description
MongoDB server may log authentication parameters, including credentials, to the server log during SASL authentication. When connection health metric logging is enabled, the full authentication parameters are written to the log without redaction.
CVSS metrics
6 scores · 3 sources · 2 versionsMedium 6.8Preferred score · CVE.org (CNA)
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:NSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated6.8MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
- NVDNIST6.8MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Medium 5.5Preferred score · CVE.org (CNA)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:NSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- NVDNIST5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS trend
Probability
0.17%
Chance of exploitation in the next 30 days
Percentile
6%
Versus all other CVEs
30-day change
+0.05 pp
From 0.12% on 21-09-2026
21-09-202621-10-2026
EPSS score0.17%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Mongodb2 products
- mongodb≥ 8.3.0, < 8.3.3
- mongodb server≥ 8.3.0, < 8.3.3
Ubuntu1 product
- mongodbAll versions (No fix recorded)
2 vendors · 3 products