CVE Explorer
CVE-2026-9828
Deserialization of untrusted data vulnerability in QOS.CH Sarl logback logback-core (HardenedObjectInputStream (logback-core) modules) allows Object Injection albeit heavily restricted.
More precisely, an attacker able to influence serialized data sent to
SimpleSocketServer or SimpleSSLSocketServer can instantiate objects from
classes in the java.lang and java.util packages that are not explicitly
blocked.
Although deserialization is heavily restricted by HardenedObjectInputStream and no
p
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"defaultStatus":"unaffected","modules":["HardenedObjectInputStream (logback-core)"],"packageName":"logback-core","product":"logback","programFiles":["HardenedObjectInputStream.java"],"repo":"https://github.com/qos-ch/logback","vendor":"QOS.CH Sarl","versions":[{"lessThanOrEqual":"1.5.32","status":"affected","version":"0","versionType":"maven"},{"status":"unaffected","version":"1.5.33"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:2e504fe8196be8fe66964c5a372c709741df678b52d85e4ace57587c1be3e799 · sha256:2d2dd0ed05861a1c… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"HIGH","attackRequirements":"PRESENT","attackVector":"NETWORK","baseScore":2.9,"baseSeverity":"LOW","exploitMaturity":"PROOF_OF_CONCEPT","privilegesRequired":"NONE","providerUrgency":"GREEN","subAvailabilityImpact":"NONE","subConfidentialityImpact":"LOW","subIntegrityImpact":"LOW","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/E:P/RE:L/U:Green","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfide…
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:2e504fe8196be8fe66964c5a372c709741df678b52d85e4ace57587c1be3e799 · sha256:2d2dd0ed05861a1c… · /containers/cna/metrics/0/cvssV4_0
CWE assertions
1 source assertion{"cweId":"CWE-502","description":"CWE-502 Deserialization of untrusted data","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:2e504fe8196be8fe66964c5a372c709741df678b52d85e4ace57587c1be3e799 · sha256:2d2dd0ed05861a1c… · /containers/cna/problemTypes/0/descriptions/0
Source references
1 source assertion{"url":"https://logback.qos.ch/news.html#1.5.33"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:2e504fe8196be8fe66964c5a372c709741df678b52d85e4ace57587c1be3e799 · sha256:2d2dd0ed05861a1c… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.