CVE-2026-110310 RSA PKCS#1 v1.5 padding oracle via legacy envelope key format downgrade in Amazon S3 Encryption Client for .NET

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 PKCS1 v1.5. Since this padding scheme is susceptible to the well-known Bleichenbacher attack, the user can use a PKCS1 v1.5 padding...

CVE-2026-110310 RSA PKCS#1 v1.5 padding oracle via legacy envelope key format downgrade in Amazon S3 Encryption Client for .NET

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 PKCS1 v1.5. Since this padding scheme is susceptible to the well-known Bleichenbacher attack, the user can use a PKCS1 v1.5 padding...

CVE-2026-110310

The Amazon S3 Encryption Client for .NET is vulnerable to an RSA PKCS#1 v1.5 padding oracle attack. A remote user capable of reading encrypted objects in an S3 bucket can force a padding downgrade by modifying an object's metadata to use the legacy PKCS#1 v1.5 scheme. This vulnerability allows th...

GHSA-FFQX-Q65F-36JF Grafana Tempo has Inadequate Encryption Strength

A vulnerability in Grafana Tempo exposes the S3 SSE-C encryption key in plaintext through the /status/config endpoint, potentially allowing unauthorized users to obtain the key used to encrypt trace data stored in S3...

CVE-2026-28377 S3 SSE-C Encryption Key Exposed in Plaintext via Config Endpoint (CVE-2025-41118 Pattern)

A vulnerability in Grafana Tempo exposes the S3 SSE-C encryption key in plaintext through the /status/config endpoint, potentially allowing unauthorized users to obtain the key used to encrypt trace data stored in S3. Thanks to williamgoodfellow for reporting this vulnerability...

S3 SSE-C Encryption Key Exposed in Plaintext via Config Endpoint

A vulnerability in Grafana Tempo exposes the S3 SSE-C encryption key in plaintext through the /status/config endpoint, potentially allowing unauthorized users to obtain the key used to encrypt trace data stored in S3. Thanks to williamgoodfellow for reporting this vulnerability...

CVE-2025-14759

Missing cryptographic key commitment in the Amazon S3 Encryption Client for .NET may allow a user with write access to the S3 bucket to introduce a new EDK that decrypts to different plaintext when the encrypted data key is stored in an "instruction file" instead of S3's metadata record. To...

GHSA-2XGQ-Q749-89FQ AWS SDK for Ruby's S3 Encryption Client has a Key Commitment Issue

Summary S3 Encryption Client for Ruby is an open-source client-side encryption library used to facilitate writing and reading encrypted records to S3. When the encrypted data key EDK is stored in an "Instruction File" instead of S3's metadata record, the EDK is exposed to an "Invisible Salamander...

GHSA-3G75-Q268-R9R6 Amazon S3 Encryption Client has a Key Commitment Issue

Summary S3 Encryption Client for Go is an open-source client-side encryption library used to facilitate writing and reading encrypted records to S3. When the encrypted data key EDK is stored in an "Instruction File" instead of S3's metadata record, the EDK is exposed to an "Invisible Salamanders"...

Amazon S3 Encryption Client for Java has a Key Commitment Issue

Summary S3 Encryption Client for Java is an open-source client-side encryption library used to facilitate writing and reading encrypted records to S3. When the encrypted data key EDK is stored in an "Instruction File" instead of S3's metadata record, the EDK is exposed to an "Invisible Salamander...

GHSA-X44P-GVRJ-PJ2R Amazon S3 Encryption Client for Java has a Key Commitment Issue

Summary S3 Encryption Client for Java is an open-source client-side encryption library used to facilitate writing and reading encrypted records to S3. When the encrypted data key EDK is stored in an "Instruction File" instead of S3's metadata record, the EDK is exposed to an "Invisible Salamander...

GHSA-4V42-65R3-3GJX Amazon S3 Encryption Client for .NET has a Key Commitment Issue

Summary S3 Encryption Client for .NET S3EC is an open-source client-side encryption library used to facilitate writing and reading encrypted records to S3. When the encrypted data key EDK is stored in an "Instruction File" instead of S3's metadata record, the EDK is exposed to an "Invisible...

PT-2025-54729

Summary S3 Encryption Client for PHP is an open-source client-side encryption library used to facilitate writing and reading encrypted records to S3. When the encrypted data key EDK is stored in an "Instruction File" instead of S3's metadata record, the EDK is exposed to an "Invisible Salamanders...

PT-2025-54680

Summary S3 Encryption Client for Ruby is an open-source client-side encryption library used to facilitate writing and reading encrypted records to S3. When the encrypted data key EDK is stored in an "Instruction File" instead of S3's metadata record, the EDK is exposed to an "Invisible Salamander...

Amazon S3 Encryption Client for .NET has a Key Commitment Issue

S3 Encryption Client for .NET S3EC is an open-source client-side encryption library used to facilitate writing and reading encrypted records to S3. When the encrypted data key EDK is stored in an "Instruction File" instead of S3's metadata record, the EDK is exposed to an "Invisible Salamanders"...

net.snowflake:snowflake-jdbc-thin (4.0.0), org.apache.hadoop:hadoop-aws (3.4.2) +6 more potentially affected by CVE-2025-14763 via software.amazon.encryption.s3:amazon-s3-encryption-client-java (>=3.1.1, <=3.5.0)

software.amazon.encryption.s3:amazon-s3-encryption-client-java MAVEN version =3.1.1, =2.7.0, =2.7.0, =2.7.0, =2.7.0, =2.7.0, =2.7.0, =2.7.2 Source cves: CVE-2025-14763 Source advisory: SNYK:JAVA-SOFTWAREAMAZONENCRYPTIONS3-14465279...

net.snowflake:snowflake-jdbc-thin (4.0.0), org.apache.hadoop:hadoop-aws (3.4.2) +6 more potentially affected by CVE-2025-14763 via software.amazon.encryption.s3:amazon-s3-encryption-client-java (>=3.1.1, <=3.5.0)

software.amazon.encryption.s3:amazon-s3-encryption-client-java MAVEN version =3.1.1, =2.7.0, =2.7.0, =2.7.0, =2.7.0, =2.7.0, =2.7.0, =2.7.2 Source cves: CVE-2025-14763 Source advisory: MEND:CVE-2025-14763...

CVE-2025-14763

Missing cryptographic key commitment in the Amazon S3 Encryption Client for Java may allow a user with write access to the S3 bucket to introduce a new EDK that decrypts to different plaintext when the encrypted data key is stored in an "instruction file" instead of S3's metadata record. To...

CVE-2025-14759

Missing cryptographic key commitment in the Amazon S3 Encryption Client for .NET may allow a user with write access to the S3 bucket to introduce a new EDK that decrypts to different plaintext when the encrypted data key is stored in an "instruction file" instead of S3's metadata record. To...

CVE-2025-14759

The CVE-2025-14759 issue affects the Amazon S3 Encryption Client for .NET. When the encrypted data key (EDK) is stored in an Instruction File instead of S3 metadata, missing cryptographic key commitment could allow a user with write access to the bucket to introduce a rogue EDK and decrypt to a d...