CVE-2021-29943

medium

Published 2021-05-10 · Modified 2024-02-17

CVSS v3

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

CVSS v2

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VIR risk

5.5

Description

When using ConfigurableInternodeAuthHadoopPlugin for authentication, Apache Solr versions prior to 8.8.2 would forward/proxy distributed requests using server credentials instead of original client credentials. This would result in incorrect authorization resolution on the receiving hosts.

Predictions

Exploit likelihood

30%

Patch ETA

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Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2021-29943

OS impact

OS	Version	Status	Fixed in
arch		fixed	`8.8.2-1`
debian	bookworm	fixed	`0`
debian	bullseye	fixed	`0`
debian	forky	fixed	`0`
debian	sid	fixed	`0`
debian	trixie	fixed	`0`

Package impact

Ecosystem	Package	Vulnerable	Fixed
Maven	org.apache.solr:solr-parent	`<8.8.2`	`8.8.2`

References

https://nvd.nist.gov/vuln/detail/CVE-2021-29943
https://lists.apache.org/thread.html/r91dd0ff556e0c9aab4c92852e0e540c59d4633718ce12881558cf44d%40%3Cusers.solr.apache.org%3E
https://security.netapp.com/advisory/ntap-20210604-0009
https://security-tracker.debian.org/tracker/CVE-2021-29943

Verify integrity in audit chain (admin only). AS-IS.