01 Record
CVE-2026-73286
RustF: Request headers can populate server-derived IAM condition keys, letting a caller satisfy identity-based policy conditions
HighPUBLISHEDCNA: GitHub_M
CNA base score8.1 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
02 Description
RustF: Request headers can populate server-derived IAM condition keys, letting a caller satisfy identity-based policy conditions
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
- EPSS probability
- 0.42% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 36.6% of scored records. A rank, not a probability.
- NVD base score
- 8.1 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
- NVD analysis status
- Deferred. NVD last modified this record on 2026-09-09.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
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.
04 Metadata
- Published
- 2026-08-12 14:40Z2 MO AGO
- Last updated
- 2026-08-12 15:17Z2 MO AGO
- Reserved
- 2026-08-11
- Assigning CNA
- GitHub_M
- Record state
- PUBLISHED
- Severity
- High (CVSS 8.1)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
- Weaknesses
- CWE-863Incorrect AuthorizationClass
- Data version
- 5.2
- Document digest
- 75efeee4ca82926c6764fe6866f871eb9379f367d55144951e0928d5e16f6ccf
05 Affected products
VendorProductVersionsPlatforms
06 References
- github.comhttps://github.com/rustfs/rustfs/security/advisories/GHSA-6r96-hmgc-726c
- github.comhttps://github.com/rustfs/rustfs/commit/92f83bfe155d8a3b9cdd903086e5b28d52339efb
- github.comhttps://github.com/rustfs/rustfs/blob/380ed40b471887014fe21d069b61df9eacca074b/.agents/skills/security-advisory-lessons/references/advisory-patterns.md?plain=1#L45
- github.comhttps://github.com/rustfs/rustfs/releases/tag/1.0.0-beta.12