CVE-2026-105241
CVE-2026-105241: 1 tracked advisory record across Apache. Compare vendor sources and published fix guidance.
Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.
Vendor advisory comparison
Apache
1 advisory- Advisory severityMedium5.3
Medium [CVE-2026-105241] Improper Handling of Unicode Encoding vulnerability in the SmtpPickupDirAppender of Apache log4net
CVE-2026-105241Source published Source updated
Improper Handling of Unicode Encoding vulnerability in the SmtpPickupDirAppender of Apache log4net. Content that the mail file writer cannot encode, such as an unpaired UTF-16 surrogate, made the write throw. Every buffered event in the batch was discarded, not only the one carrying the content, and a truncated mail could be left in the pickup directory. A party whose data reaches a log message could suppress the records of other events. Only applications that use SmtpPickupDirAppender are affected. This issue affects Apache log4net: from 1.2.9 before 3.5.0. Users are recommended to upgrade to version 3.5.0, which fixes the issue.
- Related products — impact not confirmed
- Apache log4net
- Source-reported affected versions
- 1.2.9 before 3.5.0
- Source-reported fixed versions
- 3.5.0
- Mitigation guidance
- Users are recommended to upgrade to version 3.5.0, which fixes the issue.
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