Description
Insufficiently specific bounds checking on authorization header could lead to denial of service in the Temporal server on all platforms due to excessive memory allocation.This issue affects all platforms and versions of OSS Server prior to 1.26.3, 1.27.3, and 1.28.1 (i.e., fixed in 1.26.3, 1.27.3, and 1.28.1 and later). Temporal Cloud services are not impacted.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Temporal | OSS Server | < 1.26.3, 1.27.0 – < 1.27.3, 1.28.0 – < 1.28.1 | 1.26.3 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP6 | govulncheck-vulndb | 0.0.20250918T182144-150000.1.107.1 | SUSE-SU-2025:03289-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | govulncheck-vulndb | 0.0.20250917T170349-1.1 | openSUSE-SU-2025:15564-1 |
| openSUSE Leap 16.0 | govulncheck-vulndb | 0.0.20260723T184607-160000.1.1 | openSUSE-SU-2026:21483-1 |
| openSUSE Leap 15.6 | govulncheck-vulndb | 0.0.20250918T182144-150000.1.107.1 | SUSE-SU-2025:03289-1 |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | temporal +1 | 1.4.1-r3 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Go | go.temporal.io/server | < 1.26.3 | 1.26.3 | GHSA-p768-c3pr-6459 |
| Go | go.temporal.io/server | >= 1.27.0-126.0, < 1.27.3 | 1.27.3 | GHSA-p768-c3pr-6459 |
| Go | go.temporal.io/server | >= 1.28.0-129.0, < 1.28.1 | 1.28.1 | GHSA-p768-c3pr-6459 |
| Go | go.temporal.io/server | < 1.26.3 · >= 1.27.0-126.0, < 1.27.3 · >= 1.28.0-129.0, < 1.28.1 | 1.26.3, 1.27.3, 1.28.1 | GO-2025-3953 |
Advisories 3
- openSUSE-SU-2026:21483-1 Security update for govulncheck-vulndb SUSE / openSUSE Security Updates · Jul 31, 2026
- openSUSE-SU-2025:15564-1 govulncheck-vulndb-0.0.20250917T170349-1.1 on GA media SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:03289-1 Security update for govulncheck-vulndb SUSE / openSUSE Security Updates · Feb 4, 2026