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CVE and vendor PSIRT advisories from 13 sources, last 30 days. Updated hourly, last run Oct 26 04:05 UTC

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Expand	Severity	Score	Advisory	Title	Source	Flags	Published
	Medium	6.0	CVE-2026-110310	A remote user who can read encrypted objects in the S3 bucket can force a padding downgrade by altering the padding scheme recorded in an object's metadata to legacy PKCS#1 v1.5 AmazonAmazon.Extensions.S3.Encryption	NVD		Oct 14 20:17 UTC
CVE-2026-110310A remote user who can read encrypted objects in the S3 bucket can force a padding downgrade by altering the padding scheme recorded in an object's metadata to legacy PKCS#1 v1.5 From the advisory A remote user who can read encrypted objects in the S3 bucket can force a padding downgrade by altering the padding scheme recorded in an object's metadata to legacy PKCS#1 v1.5. Since this padding scheme is susceptible to the well-known Bleichenbacher attack, the user can use a PKCS#1 v1.5 padding oracle to recover the RSA-wrapped envelope key and decrypt the object. To remediate this issue, we recommend that users upgrade to version 3.2.2 or 4.0.3. The 1.x and 2.x lines will not be patched, users of those lines need to migrate to 3.2.2 or 4.0.3. Impact if exploited ConfidentialityHigh IntegrityNone AvailabilityNone How it is exploited Attack vector Network Attack complexity Low Attack requirements Present Privileges required Low User interaction None CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Affects Amazon Amazon.Extensions.S3.Encryption NIST National Vulnerability DatabasePublished Oct 14, 2026 20:17 UTC Read the advisory

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