CVE-2021-27905

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

93.05% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 99.8% of scored records. A rank, not a probability.

NVD base score

9.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Important. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2021-04-13 06:35Z5 YR AGO

Last updated

2024-08-03 21:33Z2 YR AGO

Reserved

2021-03-02

Assigning CNA

apache

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-918Server-Side Request Forgery (SSRF)Base

Data version

5.1

Document digest

122636cdf5d0cf3d0a9d40e170eada3fde4bd8feb1f2bc19449afb01ada371e1

• lists.apache.orghttps://lists.apache.org/thread.html/r0ddc3a82bd7523b1453cb7a5e09eb5559517145425074a42eb326b10%40%3Cannounce.apache.org%3Ex_refsource_MISC
• security.netapp.comhttps://security.netapp.com/advisory/ntap-20210611-0009/x_refsource_CONFIRM
• lists.apache.org[solr-users] 20210618 CVE-2021-27905 Apache Solr ReplicationHandler/SSRF vulnerabilityhttps://lists.apache.org/thread.html/r95df34bb158375948da82b4dfe9a1b5d528572d586584162f8f5aeef%40%3Cusers.solr.apache.org%3Emailing-listx_refsource_MLIST
• lists.apache.org[solr-users] 20210618 Re: CVE-2021-27905 Apache Solr ReplicationHandler/SSRF vulnerabilityhttps://lists.apache.org/thread.html/r140128dc6bb4f4e0b6a39e962c7ca25a8cbc8e48ed766176c931fccc%40%3Cusers.solr.apache.org%3Emailing-listx_refsource_MLIST
• lists.apache.org[solr-users] 20210728 Re: CVE-2021-27905 Apache Solr ReplicationHandler/SSRF vulnerabilityhttps://lists.apache.org/thread.html/r3da74965aba2b5f5744b7289ad447306eeb2940c872801819faa9314%40%3Cusers.solr.apache.org%3Emailing-listx_refsource_MLIST
• lists.apache.org[ofbiz-notifications] 20210914 [jira] [Updated] (OFBIZ-12316) The Solr version included in OFBiz has an SSRF vulnerability (CVE-2021-27905)https://lists.apache.org/thread.html/rae9ccaecce9859f709ed1458545d90a4c07163070dc98b5e9e59057f%40%3Cnotifications.ofbiz.apache.org%3Emailing-listx_refsource_MLIST
• lists.apache.org[ofbiz-commits] 20210915 [ofbiz-plugins] branch release18.12 updated: Fixed: The Solr version included in OFBiz has an SSRF vulnerability (CVE-2021-27905) (OFBIZ-12316)https://lists.apache.org/thread.html/r720a4a0497fc90bad5feec8aa18b777912ee15c7eeb5f882adbf523e%40%3Ccommits.ofbiz.apache.org%3Emailing-listx_refsource_MLIST
• lists.apache.org[ofbiz-notifications] 20210915 [jira] [Commented] (OFBIZ-12316) The Solr version included in OFBiz has an SSRF vulnerability (CVE-2021-27905)https://lists.apache.org/thread.html/re9d64bb8e5dfefddcbf255adb4559e13a0df5b818da1b9b51329723f%40%3Cnotifications.ofbiz.apache.org%3Emailing-listx_refsource_MLIST
• lists.apache.org[ofbiz-notifications] 20210915 [jira] [Closed] (OFBIZ-12316) The Solr version included in OFBiz has an SSRF vulnerability (CVE-2021-27905)https://lists.apache.org/thread.html/rd232d77c57a8ce172359ab098df9512d8b37373ab87c444be911b430%40%3Cnotifications.ofbiz.apache.org%3Emailing-listx_refsource_MLIST
• lists.apache.org[ofbiz-commits] 20210915 [ofbiz-plugins] branch trunk updated: Fixed: The Solr version included in OFBiz has an SSRF vulnerability (CVE-2021-27905) (OFBIZ-12316)https://lists.apache.org/thread.html/r78a3a4f1138a1608b0c6d4a2ee7647848c1a20b0d5c652cd9b02c25a%40%3Ccommits.ofbiz.apache.org%3Emailing-listx_refsource_MLIST
• lists.apache.org[ofbiz-commits] 20210915 [ofbiz-plugins] branch release17.12 updated: Fixed: The Solr version included in OFBiz has an SSRF vulnerability (CVE-2021-27905) (OFBIZ-12316)https://lists.apache.org/thread.html/r6ccec7fc54d82591b23c143f1f6a6e38f6e03e75db70870e4cb14a1a%40%3Ccommits.ofbiz.apache.org%3Emailing-listx_refsource_MLIST
• lists.apache.org[ofbiz-notifications] 20210915 [jira] [Updated] (OFBIZ-12316) The Solr version included in OFBiz has an SSRF vulnerability (CVE-2021-27905)https://lists.apache.org/thread.html/r8f1152a43c36d878bbeb5a92f261e9efaf3af313b033d7acfccea59d%40%3Cnotifications.ofbiz.apache.org%3Emailing-listx_refsource_MLIST