CVE-2024-24790: Unexpected behavior from Is methods for IPv4-mapped IPv6 addresses in net/netip
Vulnerability summary
CVE-2024-24790 is a critical (CVSS 9.8) vulnerability in go standard library net/netip. EPSS estimates a 1.95% chance of exploitation in the next 30 days, higher than 80.2% of scored vulnerabilities.
Severe, CVSS 9.8 (CVE.org); no exploitation reported by the 5 checked sources; EPSS 2% (FIRST, 03-11-2026)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 31 · Related 696Showing 100 of 714.
Timeline
- 05-06-2024PublishedVulnerability first disclosed.
- 13-02-2025Last modifiedVulnerability information updated.
Description
The various Is methods (IsPrivate, IsLoopback, etc) did not work as expected for IPv4-mapped IPv6 addresses, returning false for addresses which would return true in their traditional IPv4 forms.
CVSS metrics
8 scores · 8 sources · 1 version- OSV · Red hatEcosystem advisory · calculated6.7MediumCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:NDiffers
- OSV · UbuntuEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · WolfiEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · ChainguardEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- NVDNIST9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · AlpineEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
1.95%
Chance of exploitation in the next 30 days
Percentile
80%
Versus all other CVEs
30-day change
No change 0.00 pp
From 1.95% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Chainguard199 products
- aactl< 0.4.12-r13
- actions-runner-controller< 0.9.2-r1
- actions-runner-controller-fips< 0.9.2-r2
- addon-resizer< 1.8.21-r1
- addon-resizer-fips< 1.8.21-r3
Alpine1 product
- go≥ 1.22.0, < 1.22.4-r0
2 vendors · 200 products · Showing 200 of 878
References
31 linksShow all 31 references
- pkg.go.devWEB
- lists.opensuse.org/archives/…Advisory