CVE-2025-58185 Parsing DER payload can cause memory exhaustion in encoding/asn1
Attackers can cause memory exhaustion and denial of service by sending maliciously crafted DER payloads to applications using the Go encoding/asn1 package.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-58185?
CVE-2025-58185 is a medium-severity denial of service vulnerability in Golang Go, published on 29 Oct 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Parsing a maliciously crafted DER payload could allocate large amounts of memory, causing memory exhaustion.
Weakness: CWE-770
Which versions are affected by CVE-2025-58185?
2 open source packages ship an affected version, including golang and stdlib. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
golang Bitnami | All versions | 1.24.8, 1.25.2 |
stdlib Go | All versions | 1.24.8, 1.25.2 |
Products include Golang Go.
How do I fix CVE-2025-58185?
Upgrade golang to a fixed version for your release line: 1.24.8 or 1.25.2.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2025-58185 being exploited?
There is no known exploitation of CVE-2025-58185 in the wild and no public exploit code.
Other vulnerabilities in Golang Go
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- CVE-2026-27143 Missing bound checks can lead to memory corruption in safe Go in cmd/compile
- CVE-2024-24790 Unexpected behavior from Is methods for IPv4-mapped IPv6 addresses in net/netip
- CVE-2023-39320 Arbitrary code execution via go.mod toolchain directive in cmd/go
- CVE-2023-24540 Improper handling of JavaScript whitespace in html/template
Sources
Also known as AZL-78909, AZL-98811, BELL-CVE-2025-58185, BIT-golang-2025-58185, CLEANSTART-2026-EJ31642, CLEANSTART-2026-RN20135 and 282 more.