Description
compress provides various compression algorithms. Prior to version 1.18.7, a signed integer overflow vulnerability in s2.NewDict() allows an attacker to bypass repeat index validation by supplying a dictionary with a uvarint-encoded repeat value exceeding MaxInt64. When Dict.Encode() is subsequently called, the overflowed negative repeat value causes an out-of-bounds memory access via unsafe.Pointer arithmetic, crashing the process with SIGSEGV. This issue has been patched in version 1.18.7.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| klauspost | compress | < 1.18.7 | — |
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.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | golang-github-klauspost-compress | 1.19.0+ds1-1 | — |
| Debian 13 | golang-github-klauspost-compress | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | golang-github-klauspost-compress | No fix yet | — |
| Ubuntu 26.04 LTS | golang-github-klauspost-compress | No fix yet | — |
| Ubuntu 24.04 LTS | golang-github-klauspost-compress | No fix yet | — |
| Ubuntu 22.04 LTS | golang-github-klauspost-compress | No fix yet | — |
| Ubuntu 20.04 LTS | golang-github-klauspost-compress | No fix yet | — |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | golang-github-klauspost-compress | No fix yet | — |
| Ubuntu 16.04 LTS | golang-github-klauspost-compress | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Hardened Images 1 | buildah | 1.45.1-1.hum1 | RHSA-2026:70670 |
| Red Hat Hardened Images 1 | grafana12.4 | 12.4.10-0.9.hum1 | RHSA-2026:72497 |
| Red Hat Hardened Images 1 | grafana13.1 | 13.1.6-0.4.hum1 | RHSA-2026:72498 |
| Red Hat Hardened Images 1 | grafana13.2 | 13.2.1-0.8.hum1 | RHSA-2026:72507 |
| Red Hat Hardened Images 1 | grype | 0.119.0-0.1.hum1 | RHSA-2026:68806 |
| Red Hat Hardened Images 1 | helm3 | 3.22.0-0.2.hum1 | RHSA-2026:68717 |
| Red Hat Hardened Images 1 | helm4 | 4.3.0-0.2.hum1 | RHSA-2026:68729 |
| Red Hat Hardened Images 1 | k6v1 | 1.8.1-0.1.hum1 | RHSA-2026:54419 |
| Red Hat Hardened Images 1 | k6v2 | 2.3.0-0.1.hum1 | RHSA-2026:70031 |
| Red Hat Hardened Images 1 | loki3.6 +2 | 3.6.17-0.3.hum1 | RHSA-2026:72570 |
| Red Hat Hardened Images 1 | loki3.7 +2 | 3.7.8-0.3.hum1 | RHSA-2026:72496 |
| Red Hat Hardened Images 1 | nats-server2.12 | 2.12.15-0.1.hum1 | RHSA-2026:54413 |
| Red Hat Hardened Images 1 | nats-server2.14 | 2.14.7-0.1.hum1 | RHSA-2026:68256 |
| Red Hat Hardened Images 1 | opentelemetry-collector +2 | 0.161.0-0.1.hum1 | RHSA-2026:68591, RHSA-2026:68290, RHSA-2026:68272 |
| Red Hat Hardened Images 1 | podman +4 | 6.1.2-1.hum1 | RHSA-2026:70726 |
| Red Hat Hardened Images 1 | rekor +1 | 1.5.4-0.1.hum1 | RHSA-2026:58472 |
| Red Hat Hardened Images 1 | skopeo +1 | 1.24.1-1.hum1 | RHSA-2026:70684 |
| Red Hat Hardened Images 1 | spire1.15 +3 | 1.15.3-0.2.hum1 | RHSA-2026:72493 |
| Red Hat Hardened Images 1 | syft | 1.52.0-0.1.hum1 | RHSA-2026:68808 |
| Red Hat Hardened Images 1 | tempo2.10 | 2.10.8-0.4.hum1 | RHSA-2026:72490 |
| Red Hat Hardened Images 1 | tempo3.0 | 3.0.3-0.4.hum1 | RHSA-2026:72491 |
| Red Hat Hardened Images 1 | trivy | 0.74.0-0.4.hum1 | RHSA-2026:72492 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | aliyun-cli | 3.5.2-150400.9.13.1 | SUSE-SU-2026:5195-1 |
| SLES 15 SP7 | alloy | 1.20.1-150700.15.34.1 | SUSE-SU-2026:5203-1 |
| SLES 15 SP7 | amazon-cloudwatch-agent | 1.300073.0-150400.9.18.1 | SUSE-SU-2026:4662-1 |
| SLES 15 SP7 | distribution | 3.1.2-150400.9.47.1 | SUSE-SU-2026:5202-1 |
| SLES 15 SP7 | google-osconfig-agent | 20260928.01-150000.1.70.1 | SUSE-SU-2026:4661-1 |
| SLES 15 SP7 | helm | 3.22.1-150000.1.104.1 | SUSE-SU-2026:5119-1 |
| SLES 15 SP6 | aliyun-cli | 3.5.2-150400.9.13.1 | SUSE-SU-2026:5195-1 |
| SLES 15 SP6 | amazon-cloudwatch-agent | 1.300073.0-150400.9.18.1 | SUSE-SU-2026:4662-1 |
| SLES 15 SP6 | distribution | 3.1.2-150400.9.47.1 | SUSE-SU-2026:5202-1 |
| SLES 15 SP6 | google-osconfig-agent | 20260928.01-150000.1.70.1 | SUSE-SU-2026:4661-1 |
| SLES 15 SP6 | helm | 3.22.1-150000.1.104.1 | SUSE-SU-2026:5119-1 |
| SLES 15 SP5 | aliyun-cli | 3.5.2-150400.9.13.1 | SUSE-SU-2026:5195-1 |
| SLES 15 SP5 | amazon-cloudwatch-agent | 1.300073.0-150400.9.18.1 | SUSE-SU-2026:4662-1 |
| SLES 15 SP5 | distribution | 3.1.2-150400.9.47.1 | SUSE-SU-2026:5202-1 |
| SLES 15 SP5 | google-osconfig-agent | 20260928.01-150000.1.70.1 | SUSE-SU-2026:4661-1 |
| SLES 15 SP5 | helm | 3.22.1-150000.1.104.1 | SUSE-SU-2026:5119-1 |
| SLES 15 SP4 | amazon-cloudwatch-agent | 1.300073.0-150400.9.18.1 | SUSE-SU-2026:4662-1 |
| SLES 15 SP4 | distribution | 3.1.2-150400.9.47.1 | SUSE-SU-2026:5202-1 |
| SLES 15 SP4 | google-osconfig-agent | 20260928.01-150000.1.70.1 | SUSE-SU-2026:4661-1 |
| SLES 15 SP4 | helm | 3.22.1-150000.1.104.1 | SUSE-SU-2026:5119-1 |
| SLES 12 | google-osconfig-agent | 20260928.01-1.63.1 | SUSE-SU-2026:4554-1 |
Show 11 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 16.0 | aliyun-cli | 3.5.1-160000.1.1 | SUSE-SU-2026:24261-1 |
| SLES for SAP 16.0 | distribution | 3.1.1-160000.5.1 | SUSE-SU-2026:24153-1 |
| SLES for SAP 16.0 | google-osconfig-agent | 20260928.01-160000.1.1 | SUSE-SU-2026:24222-1 |
| SLES for SAP 16.0 | helm | 4.3.0-160000.2.1 | SUSE-SU-2026:24247-1 |
| SLES for SAP 15 SP6 | distribution | 3.1.2-150400.9.47.1 | SUSE-SU-2026:5202-1 |
| SLES for SAP 15 SP6 | helm | 3.22.1-150000.1.104.1 | SUSE-SU-2026:5119-1 |
| SLES for SAP 15 SP5 | distribution | 3.1.2-150400.9.47.1 | SUSE-SU-2026:5202-1 |
| SLES for SAP 15 SP5 | helm | 3.22.1-150000.1.104.1 | SUSE-SU-2026:5119-1 |
| SLES for SAP 15 SP4 | distribution | 3.1.2-150400.9.47.1 | SUSE-SU-2026:5202-1 |
| SLES for SAP 15 SP4 | helm | 3.22.1-150000.1.104.1 | SUSE-SU-2026:5119-1 |
| SLES 16.0 | aliyun-cli | 3.5.1-160000.1.1 | SUSE-SU-2026:24261-1 |
| SLES 16.0 | distribution | 3.1.1-160000.5.1 | SUSE-SU-2026:24153-1 |
| SLES 16.0 | google-osconfig-agent | 20260928.01-160000.1.1 | SUSE-SU-2026:24222-1 |
| SLES 16.0 | helm | 4.3.0-160000.2.1 | SUSE-SU-2026:24247-1 |
| SLE Micro 6.2 | helm | 4.3.0-160000.2.1 | SUSE-SU-2026:24120-1 |
| SLE Micro 6.1 | google-osconfig-agent | 20260928.01-slfo.1.1_1.1 | SUSE-SU-2026:24277-1 |
| SLE Micro 6.1 | helm | 4.3.0-slfo.1.1_1.1 | SUSE-SU-2026:24282-1 |
| SLE Micro 6.0 | google-osconfig-agent | 20260928.01-159998.1.1 | SUSE-SU-2026:24131-1 |
| SLE Micro 5.5 | google-osconfig-agent | 20260928.01-150000.1.70.1 | SUSE-SU-2026:4661-1 |
| SLE Micro 5.5 | helm | 3.22.1-150000.1.104.1 | SUSE-SU-2026:5119-1 |
| SLE HPC 15 SP5 | distribution | 3.1.2-150400.9.47.1 | SUSE-SU-2026:5202-1 |
| SLE HPC 15 SP5 | helm | 3.22.1-150000.1.104.1 | SUSE-SU-2026:5119-1 |
| SLE HPC 15 SP4 | distribution | 3.1.2-150400.9.47.1 | SUSE-SU-2026:5202-1 |
| SLE HPC 15 SP4 | helm | 3.22.1-150000.1.104.1 | SUSE-SU-2026:5119-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | aliyun-cli | 3.5.1-2.1 | openSUSE-SU-2026:11953-1 |
| openSUSE Tumbleweed | alloy | 1.20.1-1.1 | openSUSE-SU-2026:12114-1 |
| openSUSE Tumbleweed | amazon-cloudwatch-agent | 1.300073.0-1.1 | openSUSE-SU-2026:11939-1 |
| openSUSE Tumbleweed | cadvisor | 0.60.6-1.1 | openSUSE-SU-2026:11955-1 |
| openSUSE Tumbleweed | distribution | 3.1.1-9.1 | openSUSE-SU-2026:11957-1 |
| openSUSE Tumbleweed | gh | 2.102.0-1.1 | openSUSE-SU-2026:12163-1 |
| openSUSE Tumbleweed | go-containerregistry | 0.22.1-2.1 | openSUSE-SU-2026:11960-1 |
| openSUSE Tumbleweed | google-osconfig-agent | 20260928.01-1.1 | openSUSE-SU-2026:11961-1 |
| openSUSE Tumbleweed | hauler | 2.1.1-1.1 | openSUSE-SU-2026:11962-1 |
| openSUSE Tumbleweed | helm | 4.3.0-4.1 | openSUSE-SU-2026:11963-1 |
| openSUSE Tumbleweed | helm3 | 3.22.0-3.1 | openSUSE-SU-2026:11964-1 |
| openSUSE Tumbleweed | rqlite | 10.6.1-1.1 | openSUSE-SU-2026:12186-1 |
| openSUSE Leap 16.0 | aliyun-cli | 3.5.1-160000.1.1 | openSUSE-SU-2026:22140-1 |
| openSUSE Leap 16.0 | cadvisor | 0.60.6-bp160.1.1 | openSUSE-SU-2026:22117-1 |
| openSUSE Leap 16.0 | distribution | 3.1.1-160000.5.1 | openSUSE-SU-2026:22039-1 |
| openSUSE Leap 16.0 | gh | 2.102.0-bp160.1.1 | openSUSE-SU-2026:22134-1 |
| openSUSE Leap 16.0 | go-containerregistry | 0.22.1-bp160.1.1 | openSUSE-SU-2026:22227-1 |
| openSUSE Leap 16.0 | google-osconfig-agent | 20260928.01-160000.1.1 | openSUSE-SU-2026:22078-1 |
| openSUSE Leap 16.0 | hauler | 2.1.1-bp160.1.1 | openSUSE-SU-2026:22116-1 |
| openSUSE Leap 16.0 | helm | 4.3.0-160000.2.1 | openSUSE-SU-2026:22057-1 |
| openSUSE Leap 16.0 | rqlite | 10.6.6-bp160.1.1 | openSUSE-SU-2026:22224-1 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | keda +1 | No fix yet | — |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | aactl | 0.4.12-r66 | — |
| Wolfi rolling | ctr-1 +3 | 1.7.34-r4 | — |
| Wolfi rolling | ctr-2 +4 | 2.3.3-r4 | — |
| Wolfi rolling | dogstatsd-7.72 +4 | No fix yet | — |
| Wolfi rolling | dogstatsd-7.78 | 7.78.4-r19 | — |
| Wolfi rolling | dogstatsd-7.79 +1 | 7.79.2-r17 | — |
| Wolfi rolling | dogstatsd-7.81 | 7.81.3-r5 | — |
| Wolfi rolling | falco-no-driver | 0.45.0-r0 | — |
| Wolfi rolling | flux-2.7 | 2.7.5-r30 | — |
| Wolfi rolling | flux-2.8 | 2.8.8-r14 | — |
| Wolfi rolling | flux-2.9 | 2.9.3-r2 | — |
| Wolfi rolling | helm-3 | 3.22.0-r0 | — |
| Wolfi rolling | k3d | 5.9.0-r6 | — |
| Wolfi rolling | k3s +2 | 1.36.2.1-r9 | — |
| Wolfi rolling | k3s-1.32 +1 | 1.32.13.1-r25 | — |
| Wolfi rolling | k3s-1.34 +2 | 1.34.9.1-r9 | — |
| Wolfi rolling | k3s-1.35 +2 | 1.35.6.1-r10 | — |
| Wolfi rolling | kaf | 0.2.14-r10 | — |
| Wolfi rolling | kine | 0.16.3-r6 | — |
| Wolfi rolling | kots | 1.130.9-r3 | — |
| Wolfi rolling | kyverno-1.17 | 1.17.2-r35 | — |
| Wolfi rolling | kyverno-1.18 +5 | 1.18.2-r4 | — |
| Wolfi rolling | kyverno-cli-1.17 +4 | 1.17.2-r25 | — |
| Wolfi rolling | loki-3.6 +3 | 3.6.13-r1 | — |
| Wolfi rolling | loki-3.7 +2 | 3.7.4-r2 | — |
| Wolfi rolling | minio | 0.20260717.120751-r4 | — |
| Wolfi rolling | nerdctl | 2.3.5-r3 | — |
| Wolfi rolling | prometheus-operator | 0.93.0-r0 | — |
| Wolfi rolling | prometheus-operator-iamguarded-compat | 0.94.0-r0 | — |
| Wolfi rolling | ruby3.3-fluent-plugin-grafana-loki-3.7 | 3.7.7-r4 | — |
| Wolfi rolling | snyk-cli | 1.1306.2-r3 | — |
| Wolfi rolling | spire-agent | 1.15.2-r3 | — |
| Wolfi rolling | telegraf-1.38 | 1.38.4-r16 | — |
| Wolfi rolling | zot | 2.1.18-r6 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Go | github.com/klauspost/compress | < 1.18.7 | 1.18.7 | GHSA-259r-337f-4rfw |
| Go | github.com/klauspost/compress | >= 1.16.0, < 1.18.7 | 1.18.7 | GO-2026-5841 |
Advisories 50
- SUSE-SU-2026:5203-1 Security update for alloy SUSE / openSUSE Security Updates · Nov 12, 2026
- SUSE-SU-2026:5202-1 Security update for distribution SUSE / openSUSE Security Updates · Nov 12, 2026
- SUSE-SU-2026:5195-1 Security update for aliyun-cli SUSE / openSUSE Security Updates · Nov 12, 2026
- SUSE-SU-2026:5119-1 Security update for helm SUSE / openSUSE Security Updates · Nov 5, 2026
- openSUSE-SU-2026:22224-1 Security update for rqlite SUSE / openSUSE Security Updates · Nov 4, 2026
- openSUSE-SU-2026:22227-1 Security update for go-containerregistry SUSE / openSUSE Security Updates · Nov 4, 2026
- SUSE-SU-2026:24282-1 Security update for helm SUSE / openSUSE Security Updates · Oct 27, 2026
- SUSE-SU-2026:24277-1 Security update for google-osconfig-agent SUSE / openSUSE Security Updates · Oct 27, 2026
- SUSE-SU-2026:24261-1 Security update for aliyun-cli SUSE / openSUSE Security Updates · Oct 23, 2026
- openSUSE-SU-2026:22140-1 Security update for aliyun-cli SUSE / openSUSE Security Updates · Oct 22, 2026
- SUSE-SU-2026:24222-1 Security update for google-osconfig-agent SUSE / openSUSE Security Updates · Oct 21, 2026
- SUSE-SU-2026:24247-1 Security update for helm SUSE / openSUSE Security Updates · Oct 21, 2026
- openSUSE-SU-2026:22134-1 Security update for gh SUSE / openSUSE Security Updates · Oct 20, 2026
- RHSA-2026:68717 Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2026:72570 Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2026:72491 Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2026:72492 Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2026:58472 Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2026:72496 Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2026:68290 Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2026:68591 Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2026:72490 Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2026:70670 Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2026:72498 Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2026:70031 Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2026:72493 Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2026:72507 Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2026:68729 Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2026:68272 Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2026:72497 Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2026:70726 Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2026:70684 Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2026:68808 Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2026:68806 Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2026:68256 Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2026:54419 Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2026:54413 Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- openSUSE-SU-2026:22117-1 Security update for cadvisor SUSE / openSUSE Security Updates · Oct 19, 2026
- openSUSE-SU-2026:22116-1 Security update for hauler SUSE / openSUSE Security Updates · Oct 19, 2026
- openSUSE-SU-2026:22078-1 Security update for google-osconfig-agent SUSE / openSUSE Security Updates · Oct 19, 2026
- openSUSE-SU-2026:22057-1 Security update for helm SUSE / openSUSE Security Updates · Oct 19, 2026
- openSUSE-SU-2026:12186-1 rqlite-10.6.1-1.1 on GA media SUSE / openSUSE Security Updates · Oct 19, 2026
- openSUSE-SU-2026:12163-1 gh-2.102.0-1.1 on GA media SUSE / openSUSE Security Updates · Oct 18, 2026
- SUSE-SU-2026:24153-1 Security update for distribution SUSE / openSUSE Security Updates · Oct 16, 2026
- SUSE-SU-2026:24131-1 Security update for google-osconfig-agent SUSE / openSUSE Security Updates · Oct 15, 2026
- SUSE-SU-2026:4661-1 Security update for google-osconfig-agent SUSE / openSUSE Security Updates · Oct 14, 2026
- SUSE-SU-2026:4662-1 Security update for amazon-cloudwatch-agent SUSE / openSUSE Security Updates · Oct 14, 2026
- openSUSE-SU-2026:12114-1 alloy-1.20.1-1.1 on GA media SUSE / openSUSE Security Updates · Oct 14, 2026
- SUSE-SU-2026:24120-1 Security update for helm SUSE / openSUSE Security Updates · Oct 13, 2026
- openSUSE-SU-2026:22039-1 Security update for distribution SUSE / openSUSE Security Updates · Oct 9, 2026