CVE-2026-104895: Solr · asynchronous Smile parser (NonBlockingByteArrayParser) uses a raw-binary length prefix taken
Affects solrSource GCVE Database
Not known to be exploited · CVSS 7.5 High : upgrade to 10.0.0-r12 soon.
Data as of 11 Nov 2026, 04:17 UTC
Thin evidence
One scorer or none| CNA (HeroDevs) | CVSS 3.1 | 7.5 |
|---|
- Patch
- Available – fixed in 10.0.0-r12
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitation evidence
Disclosed: evidence found.
CVE published 28 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 10 Nov 2026.
What to do
Upgrade solr to 10.0.0-r12.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
CleanStartsolrpkg:apk/cleanstart/solrOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Upgrade Apache Solr to version 10.0.0-r12 or later, where this vulnerability is fixed. Since a patch is available, applying the official fix is the recommended mitigation.
Description
A high-severity vulnerability in Apache Solr's asynchronous Smile parser (NonBlockingByteArrayParser) allows untrusted input to specify a raw-binary length prefix used to allocate a byte array without upper bound or overflow checks. This can lead to denial of service by exhausting system resources. The issue affects Solr versions prior to 10.0.0-r12 and has been fixed in 10.0.0-r12.