CVE-2022-23525 | Helm vulnerable to Denial of service via NULL Pointer Dereference

Helm is a tool for managing Charts, pre-configured Kubernetes resources. Versions prior to 3.10.3 are subject to NULL Pointer Dereference in the _repo_package. The _repo_ package contains a handler that processes the index file of a repository. For example, the Helm client adds references to chart repositories where charts are managed. The _repo_ package parses the index file of the repository and loads it into structures Go can work with. Some index files can cause array data structures to be created causing a memory violation. Applications that use the _repo_ package in the Helm SDK to parse an index file can suffer a Denial of Service when that input causes a panic that cannot be recovered from. The Helm Client will panic with an index file that causes a memory violation panic. Helm is not a long running service so the panic will not affect future uses of the Helm client. This issue has been patched in 3.10.3. SDK users can validate index files that are correctly formatted before passing them to the _repo_ functions.

Published: 2022-12-15 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2022-23525 is rated Low Risk (27.8/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.06%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2022-23525

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-01-28 0.04% 0.06% +0.02%
2 2025-11-21 0.27% 0.04% -0.23%
3 2025-11-18 0.27%

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2022-23525

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.3 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:L)
Might cause slowdowns, glitches, or partial disruption—not a full brick.
3.9 1.4 [email protected]
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
3.9 3.6 [email protected]

Weakness enumeration for CVE-2022-23525

GitHub Security Advisory for CVE-2022-23525

GHSA-53c4-hhmh-vw5q · Severity: medium · Ecosystem: go — Helm vulnerable to denial of service through through repository index file

OS Trackers for CVE-2022-23525

vendor priority summary link
alpine high CVE-2022-23525: 1 source package rows (helm); 5 state rows across 3 repos (3.17-community, 3.22-community, edge-community); fixed 0, open 5. https://security.alpinelinux.org/vuln/CVE-2022-23525
redhat medium https://access.redhat.com/security/cve/CVE-2022-23525
suse low CVE-2022-23525 severity low: SUSE including 253 source package names (2.16.12:helm-2.16.12-150100.3.14.1, 3.17.3-8.1:helm-3.10.3-150000.1.13.1, …), 281 product×package rows across 23 product lines (Container caasp/v4/helm-tiller, Container suse/helm, … (23 product lines)): Known Affected 231, Fixed 50. https://www.suse.com/security/cve/CVE-2022-23525/

Affected software / configurations for CVE-2022-23525

Vendor Product Version Raw CPE
helm helm >= 3.0.0, < 3.10.3 cpe:2.3:a:helm:helm:*:*:*:*:*:*:*:*

References for CVE-2022-23525

cvelogic Threat Intelligence