CVE-2025-27821

🗓️ 26 Jan 2026 10:16:05Reported by [email protected]Type

CVE-2025-27821 is an out-of-bounds write in Hadoop HDFS native client, affecting 3.2.0 to before 3.4.2; upgrade to 3.4.2.

Reporter	Title	Published	Views	Family All 22
ATTACKERKB	CVE-2025-27821	26 Jan 202609:44	–	attackerkb
Circl	CVE-2025-27821	23 Jan 202618:57	–	circl
CNNVD	Apache Hadoop security vulnerabilities	26 Jan 202600:00	–	cnnvd
CVE	CVE-2025-27821	26 Jan 202609:44	–	cve
Cvelist	CVE-2025-27821 HDFS native client: Out of bounds write in URI parser of native HDFS client	26 Jan 202609:44	–	cvelist
EUVD	EUVD-2025-206351	26 Jan 202609:44	–	euvd
Github Security Blog	Apache Hadoop HDFS Native Client has Out-of-bounds Write Vulnerability	26 Jan 202612:30	–	github
Oracle	Oracle Critical Patch Update Advisory - April 2026	24 Apr 202600:00	–	oracle
Oracle	Oracle Critical Patch Update Advisory - July 2026	21 Jul 202600:00	–	oracle
OSV	CLEANSTART-2026-JU62349 Security fixes for CVE-2018-10237, CVE-2020-8908, CVE-2021-22569, CVE-2021-22570, CVE-2022-3171, CVE-2022-3509, CVE-2022-3510, CVE-2023-2976, CVE-2023-44981, CVE-2024-23454, CVE-2024-23944, CVE-2024-38827, CVE-2024-47554, CVE-2024-6763, CVE-2024-7254, CVE-2025-11143, CVE-2025-24970, CVE-2025-25193, CVE-2025-27821, CVE-2025-41249, CVE-2025-48734, CVE-2025-48924, CVE-2025-49128, CVE-2025-52999, CVE-2025-53864, CVE-2025-55163, CVE-2025-58056, CVE-2025-58057, CVE-2025-59419, CVE-2025-67735, CVE-2025-68161, CVE-2025-8916, CVE-2026-24281, CVE-2026-24308, CVE-2026-33870, CVE-2026-33871, CVE-2026-40490, CVE-2026-41417, CVE-2026-5588, ghsa-72hv-8253-57qq, ghsa-cmxv-58fp-fm3g applied in versions: 4.2.0-r0, 4.2.0-r1, 4.2.0-r2	18 May 202613:11	–	osv