CVE-2026-61916
published 2026-10-21CVE-2026-61916: Out-of-bounds reads in URL parsing and case-insensitive header lookup in Apache bRPC before version 1.18.0 on platforms where plain char is unsigned, such as…
PriorityP431medium6.6
EPSS
0.20%
10.0th percentile
Out-of-bounds reads in URL parsing and case-insensitive header lookup in Apache bRPC before version 1.18.0 on platforms where plain char is unsigned, such as ARM64, allow remote attackers to cause a process crash and denial of service by sending crafted input containing bytes with the high bit set.
Root Cause:
Two 256-entry lookup tables are accessed through pointers biased by 128 so that valid indices are in the range -128 to 127. Input bytes are promoted from plain char to int without first normalizing them to the signed-char range. On affected platforms, bytes in the range 0x80 to 0xFF therefore become indices 128 to 255 and read up to 127 bytes beyond the end of the underlying tables.
Affected Scenarios:
A remotely accessible bRPC HTTP server on an affected platform can reach the vulnerable URL lookup through an unauthenticated request URI containing a high-bit byte. The case-insensitive lookup is also reachable when untrusted header names are processed through APIs such as the HTTP/2 HPACK path. HTTP/1 header names containing high-bit bytes are rejected by the HTTP/1 parser before reaching the vulnerable lookup. Builds where plain char is signed, which commonly include x86_64 builds, are not affected by this issue.
How to Fix:
Choose one of the following options:
1. Upgrade Apache bRPC to version 1.18.0 or later.
2. Apply the patch from https://github.com/apache/brpc/pull/3376 .
The fix normalizes lookup-table indices to the signed-char range before accessing the biased tables.
Affected
1 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| apache_software_foundation | apache_brpc | < 1.18.0 | 1.18.0 |
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GHSA
Out-of-bounds reads in URL parsing and case-insensitive header lookup in Apache bRPC before version 1.18.0 on platforms where plain char is unsigned, such as ARM64, allow remote attackers to cause a p
ghsa_unreviewed·2026-10-21
CVE-2026-61916 CWE-125 Out-of-bounds reads in URL parsing and case-insensitive header lookup in Apache bRPC before version 1.18.0 on platforms where plain char is unsigned, such as ARM64, allow remote attackers to cause a p
Out-of-bounds reads in URL parsing and case-insensitive header lookup in Apache bRPC before version 1.18.0 on platforms where plain char is unsigned, such as ARM64, allow remote attackers to cause a process crash and denial of service by sending crafted input containing bytes with the high bit set.
Root Cause:
Two 256-entry lookup tables are accessed through pointers biased by 128 so that valid indices are in the range -128 to 127. Input bytes are promoted from plain char to int without first normalizing them to the signed-char range. On affected platforms, bytes in the range 0x80 to 0xFF therefore become indices 128 to 255 and read up to 127 bytes beyond the end of the underlying tables.
Affected Scenarios:
A remotely accessible bRPC HTTP server on an affected platform can reach the vul
GHSA
Spinnaker clouddriver and orca URL validation bypass via underscores in hostnames
ghsa·2026-03-16·CVSS 6.6
CVE-2026-25534 [HIGH] CWE-918 Spinnaker clouddriver and orca URL validation bypass via underscores in hostnames
Spinnaker clouddriver and orca URL validation bypass via underscores in hostnames
### Impact
Spinnaker updated URL Validation logic on user input to provide sanitation on user inputted URLs for clouddriver. However, they missed that Java URL objects do not correctly handle underscores on parsing. This led to a bypass of the previous CVE (CVE-2025-61916) through the use of carefully crafted URLs. Note, Spinnaker found this not just in that CVE, but in the existing URL validations in Orca fromUrl expression handling. This CVE impacts BOTH artifacts as a result.
### Patches
This has been merged and will be available in versions 2025.4.1, 2025.3.1, 2025.2.4 and 2026.0.0.
### Workarounds
You can disable the various artifacts on this system to work around these limits.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2026-10-21
Published