CVE-2021-27905

highPriorität · handeln · 82EPSS 0.931 · 100. PerzentilExploit · PoCEUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

5 exploits · PoC

Likely / severe?

93.1% (100th) EPSS

CVSS 7.5 · high

Is it mine?

4 products

Prüfe deine Angriffsfläche

Who says so?

4 sources

cnnvd · enisa_euvd · osv · nvd

EPSS · bewertet 2026-10-27

The ReplicationHandler (normally registered at "/replication" under a Solr core) in Apache Solr has a "masterUrl" (also "leaderUrl" alias) parameter that is used to designate another ReplicationHandler on another Solr core to replicate index data into the local core. To prevent a SSRF vulnerability, Solr ought to check these parameters against a similar configuration it uses for the "shards" parameter. Prior to this bug getting fixed, it did not. This problem affects essentially all Solr versions prior to it getting fixed in 8.8.2.

cvss

Technischer Schweregrad, 0–10. Eine Zeile je Quelle.

9.8

010

Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · high–critical · 7.1–9.8

v2.07.5highAV:N/AC:L/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USAusnutzbarkeit 10 · Auswirkung 6.4

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USAusnutzbarkeit 3.9 · Auswirkung 5.9

v3.17.1highCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:Nsecondary · OSV

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Hsecondary · CVSS-BT (t0sche)

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-918USprimärCWE-918US

Exploits (5)

Öffentlicher Proof-of-Concept- und Exploit-Code.

Henry4E36/Solr-SSRFApache Solr SSRF(CVE-2021-27905)PoC · poc_in_github
RIZZZIOM/CVE-2021-27905Apache Solr < 8.8.2 Server Side Request ForgeryPoC · poc_in_github
W2Ning/Solr-SSRFCVE-2021-27905PoC · poc_in_github
murataydemir/CVE-2021-27905[CVE-2021-27905] Apache Solr ReplicationHandler Server Side Request Forgery (SSRF)PoC · poc_in_github
pdelteil/CVE-2021-27905.POCPOC for LFI related to CVE-2021-27905PoC · poc_in_github

betroffene Produkte (4)

Betroffene Produkte und Versionsbereiche.

Apache Software Foundation Apache SolrApache Solr → 8.8.2enisa_euvdEU
apache solr< 8.8.2nvdUScpe:2.3:a:apache:solr:*:*:*:*:*:*:*:*
Bitnami solr< 8.8.2osvUSpkg:bitnami/solr
Maven org.apache.solr:solr-parent< 8.8.2osvUSpkg:maven/org.apache.solr/solr-parent

Advisories (2)

Hersteller- und Ökosystem-Meldungen dazu.

GHSA-5phw-3jrp-3vj8Server-Side Request Forgery in Apache Solr2021-05-10ghsa · osvUS
The ReplicationHandler (normally registered at "/replication" under a Solr core) in Apache Solr has a "masterUrl" (also "leaderUrl" alias) parameter that is used to designate another ReplicationHandler on another Solr core to replicate index data into the local core. To prevent a SSRF vulnerability, Solr ought to check these parameters against a similar configuration it uses for the "shards" parameter. Prior to this bug getting fixed, it did not. This problem affects essentially all Solr versions prior to it getting fixed in 8.8.2.
BIT-solr-2021-27905SSRF vulnerability with the Replication handler2024-03-06vendor · osvUS
The ReplicationHandler (normally registered at "/replication" under a Solr core) in Apache Solr has a "masterUrl" (also "leaderUrl" alias) parameter that is used to designate another ReplicationHandler on another Solr core to replicate index data into the local core. To prevent a SSRF vulnerability, Solr ought to check these parameters against a similar configuration it uses for the "shards" parameter. Prior to this bug getting fixed, it did not. This problem affects essentially all Solr versions prior to it getting fixed in 8.8.2.

auch bekannt als (5)

Weitere Namen und Kennungen dieser Entität.

quellen

Welche Quellen diesen Datensatz belegen und wann.

cnnvd enisa_euvd osv nvd NVD CVE.org MITRE

veröffentlicht 2021-04-13geändert 2026-06-17

verwandt (4,182)

Verwandte Einträge.

ID	Schweregrad	EPSS	ausnutzbar	veröffentlicht
CVE-2026-96655US	—OT kritisch	1.64% (76th)	KEV	2026-09-23
Plex Media Server before 1.43.3.10861 allows an authenticated user to request arbitrary internal or external addresses via the '/video/:/transcode/universal' path parameter.
CVE-2026-96652US	—OT kritisch	1.82% (79th)	KEV	2026-09-23
Plex Media Server before 1.43.3.10861 allows SSRF via '/player/timeline'. An attacker using any X-Plex-Token value can include a full URL in the 'protocol' parameter and force the…
CVE-2026-83548US	—OT kritisch	8.04% (95th)	KEV	2026-09-01
A Pre-authentication SSRF vulnerability exists in the SMA1000 Appliance Work Place interface due to an unintended alternate access path. A remote unauthenticated attacker could pot…
CVE-2026-64849US	—OT kritisch	10.0% (96th)	KEV	2026-08-17
MLflow is an open source AI engineering platform for agents, large language models, and machine learning models. Starting in 3.3.0 and prior to 3.15.0, the unauthenticated POST /ap…
CVE-2026-15410US	—OT kritisch	11.8% (96th)	KEV	2026-07-14
Post-authentication improper control of generation of code ('Code Injection') vulnerability has been identified in the SMA1000 Appliance Management Console (AMC) which in specific…

+4177 weitere

Referenzen (40)

Externe Belege — Patches, Meldungen, Analysen.

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