SB20260728134 - Anolis OS update for nodejs
Published: July 28, 2026
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 13 vulnerabilities.
1) Improper Validation of Specified Quantity in Input (CVE-ID: CVE-2026-1528)
CWE-ID: CWE-1284 - Improper Validation of Specified Quantity in Input
CVSSv4: 8.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to improper validation of specified quantity in input in the ByteParser when processing a WebSocket frame with a 64-bit length field. A remote attacker can send an extremely large length value to cause a denial of service.
2) Allocation of Resources Without Limits or Throttling (CVE-ID: CVE-2026-2581)
CWE-ID: CWE-770 - Allocation of Resources Without Limits or Throttling
CVSSv4: 8.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to allocation of resources without limits or throttling in DeduplicationHandler when processing deduplicated requests with large or chunked response bodies from an attacker-controlled or untrusted upstream endpoint. A remote attacker can trigger concurrent identical requests that cause response data to accumulate in memory to cause a denial of service.
Only applications with interceptors.deduplicate() enabled are vulnerable.
3) Inclusion of Sensitive Information in Log Files (CVE-ID: CVE-2026-48615)
CWE-ID: CWE-532 - Information Exposure Through Log Files
CVSSv4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a remote user to disclose sensitive information.
The vulnerability exists due to improper handling of sensitive information in ERR_PROXY_TUNNEL error messages when processing proxy URLs with embedded credentials. A remote user can trigger an error handling path to disclose sensitive information.
The exposed data may be captured by logs, diagnostics, or other error consumers.
4) Input validation error (CVE-ID: CVE-2026-48618)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: 8.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to bypass tls wildcard-depth authentication.
The vulnerability exists due to improper input validation in TLS hostname handling when normalizing hostnames with unicode dot separators. A remote attacker can present a crafted hostname to bypass tls wildcard-depth authentication.
This can lead to confidentiality impact or bypass of the intended security boundary under affected configurations.
5) Resource exhaustion (CVE-ID: CVE-2026-48619)
CWE-ID: CWE-400 - Resource exhaustion
CVSSv4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to uncontrolled resource consumption in node:http2 clients when processing attacker-controlled ORIGIN frames. A remote attacker can send an unlimited number of ORIGIN frames to cause a denial of service.
The issue can lead to an out-of-memory condition on the client.
6) Improper validation of certificate with host mismatch (CVE-ID: CVE-2026-48928)
CWE-ID: CWE-297 - Improper Validation of Certificate with Host Mismatch
CVSSv4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to bypass mTLS authorization.
The vulnerability exists due to case-sensitive hostname matching in SNI context matching when selecting contexts in multi-context mTLS setups. A remote attacker can use an uppercase hostname to bypass mTLS authorization.
7) Improper Null Termination (CVE-ID: CVE-2026-48930)
CWE-ID: CWE-170 - Improper Null Termination
CVSSv4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to bypass hostname-based authority checks.
The vulnerability exists due to c-string truncation in resolver bindings in TLS hostname handling when processing hostnames containing an embedded nul character. A remote attacker can present a crafted hostname to bypass hostname-based authority checks.
8) Integer overflow (CVE-ID: CVE-2026-48933)
CWE-ID: CWE-190 - Integer overflow
CVSSv4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to integer overflow in the WebCrypto subtle.encrypt() implementation when processing input whose size is a multiple of 2 gib. A remote attacker can supply crafted input to cause a denial of service.
9) Improper Certificate Validation (CVE-ID: CVE-2026-48934)
CWE-ID: CWE-295 - Improper Certificate Validation
CVSSv4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to bypass certificate validation.
The vulnerability exists due to improper certificate validation in TLS host verification when reusing a session with a different servername. A remote attacker can reuse a session with a different servername to bypass certificate validation.
10) Improper access control (CVE-ID: CVE-2026-48935)
CWE-ID: CWE-284 - Improper Access Control
CVSSv4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a local user to modify file metadata outside intended permission restrictions.
The vulnerability exists due to improper access control in FileHandle.utimes() in the promises API when enforcing read-only filesystem permissions. A local user can invoke FileHandle.utimes() on a read-only path to modify file metadata outside intended permission restrictions.
11) Improper Resource Shutdown or Release (CVE-ID: CVE-2026-48937)
CWE-ID: CWE-404 - Improper Resource Shutdown or Release
CVSSv4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to improper resource management in the HTTP/2 server API when handling invalid protocol errors after sending a GOAWAY frame. A remote attacker can continue sending data to cause a denial of service.
12) Time-of-check Time-of-use (TOCTOU) Race Condition (CVE-ID: CVE-2026-48931)
CWE-ID: CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
CVSSv4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to poison the HTTP response queue.
The vulnerability exists due to a time-of-check time-of-use race condition in http.Agent when accepting a response before the client has sent the request. A remote attacker can send a response early to poison the HTTP response queue.
13) Improper access control (CVE-ID: CVE-2026-48617)
CWE-ID: CWE-284 - Improper Access Control
CVSSv4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a local user to bypass the intended security boundary.
The vulnerability exists due to improper access control in process.report.writeReport() path validation when enforcing the permission model. A local user can provide a crafted path to bypass the intended security boundary.
This can lead to confidentiality impact under affected configurations.
Remediation
Install update from vendor's website.