Linux · 
Amazon Linux · Security advisory · November 7, 2026
Amazon Linux · Security advisory · November 7, 2026ALAS2023-2026-3298: Security update for 2 packages
ALAS2023-2026-3298, released November 7, 2026, fixes 9 CVEs across 2 products. None of them is reported as exploited. Patch Radar priority: Urgent.
Urgent
CVEs closed
9
1 rated Critical
Exploited
0
None reported
Highest CVSS
9.1
Base score, 0 to 10
Highest EPSS
0.0043
37th percentile
Priority of the 9 CVEs
Patch now 0
Urgent 1
High 8
Routine 0
Fixed package versions
| Product | Release | Fixed in |
|---|---|---|
| python3-jwt | amzn 2023 | 2.4.0-1.amzn2023.0.6 |
| python3-jwt+crypto | amzn 2023 | 2.4.0-1.amzn2023.0.6 |
CVEs this fix closes
| Priority | CVE | Title | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|
| Urgent | CVE-2026-102268 | PyJWT: Asymmetric-PEM detection bypass: whitespace/line-ending-mutated public keys skip the HS/asymmetric confusion guard | 9.1 | 0.0024 | None reported |
| High | CVE-2026-101917 | PyJWT: PyJWKClient still amplifies unauthenticated JWKS fetches on unknown kid values (incomplete fix of CVE-2026-48524) | 7.5 | 0.0043 | None reported |
| High | CVE-2026-101918 | PyJWT: Unauthenticated RecursionError DoS in pre-verification payload parse (PyJWKClient.get_signing_key_from_jwt / verify_signature=False) | 7.5 | 0.0041 | None reported |
| High | CVE-2026-102266 | PyJWK accepts empty HMAC keys, bypassing PyJWT's empty-key validation | 9.1 | 0.0023 | None reported |
| High | CVE-2026-102272 | PyJWT BOM Bypass | 9.1 | 0.0022 | None reported |
| High | CVE-2026-102271 | PyJWT: Public keys in DER form are accepted as HMAC secrets, bypassing the CVE-2022-29217 guard | 9.1 | 0.0022 | None reported |
| High | CVE-2026-102273 | PyJWT accepts public JWK containers as HMAC secrets | 7.4 | 0.0018 | None reported |
| High | CVE-2026-102275 | PyJWT accepts inconsistent OKP x/d JWKs, causing public/private key identity confusion | 8.2 | 0.0017 | None reported |
| High | CVE-2026-102267 | PyJWT: PyJWKClient follows redirects when fetching JWKS | 9.1 | 0.0016 | None reported |
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