CVE-2026-34986 — Go JOSE affect by a panic in JWE decryption

Affected: go-jose, Red Hat Cryostat 4 on RHEL 9, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 10.0 Extended Update Support, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 8.8 Telecommunications Update Service, Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions, Red Hat Enterprise Linux 9, Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions, Red Hat Enterprise Linux 9.4 Extended Update Support and 103 more

Go JOSE provides an implementation of the Javascript Object Signing and Encryption set of standards in Go, including support for JSON Web Encryption (JWE), JSON Web Signature (JWS), and JSON Web Token (JWT) standards. Prior to 4.1.4 and 3.0.5, decrypting a JSON Web Encryption (JWE) object will panic if the alg field indicates a key wrapping algorithm (one ending in KW, with the exception of A128GCMKW, A192GCMKW, and A256GCMKW) and the encrypted_key field is empty. The panic happens when cipher.KeyUnwrap() in key_wrap.go attempts to allocate a slice with a zero or negative length based on the length of the encrypted_key. This code path is reachable from ParseEncrypted() / ParseEncryptedJSON() / ParseEncryptedCompact() followed by Decrypt() on the resulting object. Note that the parse functions take a list of accepted key algorithms. If the accepted key algorithms do not include any key wrapping algorithms, parsing will fail and the application will be unaffected. This panic is also reachable by calling cipher.KeyUnwrap() directly with any ciphertext parameter less than 16 bytes long, but calling this function directly is less common. Panics can lead to denial of service. This vulnerability is fixed in 4.1.4 and 3.0.5.

GHSA-xmrv-pmrh-hhx2 — Denial of Service due to Panic in AWS SDK for Go v2 SDK EventStream Decoder

Affected: Go: github.com/aws/aws-sdk-go-v2/aws/protocol/eventstream, Go: github.com/aws/aws-sdk-go-v2/service/bedrockagentcore, Go: github.com/aws/aws-sdk-go-v2/service/bedrockagentruntime, Go: github.com/aws/aws-sdk-go-v2/service/bedrockruntime, Go: github.com/aws/aws-sdk-go-v2/service/cloudwatchlogs, Go: github.com/aws/aws-sdk-go-v2/service/iotsitewise, Go: github.com/aws/aws-sdk-go-v2/service/kinesis, Go: github.com/aws/aws-sdk-go-v2/service/lambda, Go: github.com/aws/aws-sdk-go-v2/service/lexruntimev2, Go: github.com/aws/aws-sdk-go-v2/service/s3 and 2 more

**CVSSv3.1 Rating**: [Medium] **CVSSv3.1 Score**: [5.9] **CVSSv3.1 Vector String**: [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H]

## Summary and Impact An issue exists in the the EventStream header decoder in AWS SDK for Go v2 in versions predating [2026-03-23](https://github.com/aws/aws-sdk-go-v2/releases/tag/release-2026-03-23). An actor can send a malformed EventStream response frame containing a crafted header value type byte outside the valid range, which can cause the host process to terminate.

Impacted versions: < [2026-03-23](https://github.com/aws/aws-sdk-go-v2/releases/tag/release-2026-03-23)

## Patches This issue has been addressed in versions [2026-03-23](https://github.com/aws/aws-sdk-go-v2/releases/tag/release-2026-03-23) and above. We recommend upgrading to the latest version and ensuring any forked or derivative code is patched to incorporate the new fixes.

## Workarounds Not Applicable

## References If you have any questions or comments about this advisory, we ask that you contact [AWS/Amazon] Security via our [vulnerability reporting page](https://aws.amazon.com/security/vulnerability-reporting) or directly via email to [aws-security@amazon.com](mailto:aws-security@amazon.com). Please do not create a public GitHub issue.

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CVE-2026-34986 — Go JOSE affect by a panic in JWE decryption

GHSA-xmrv-pmrh-hhx2 — Denial of Service due to Panic in AWS SDK for Go v2 SDK EventStream Decoder