CVE-2026-32288
published 2026-04-08CVE-2026-32288: tar.Reader can allocate an unbounded amount of memory when reading a maliciously-crafted archive containing a large number of sparse regions encoded in the…
PriorityP420medium5.5CVSS 3.1
AVLACLPRNUIRSUCNINAH
EPSS
0.29%
20.8th percentile
tar.Reader can allocate an unbounded amount of memory when reading a maliciously-crafted archive containing a large number of sparse regions encoded in the "old GNU sparse map" format.
Affected
10 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | golang-1.15 | < golang-1.25 1.25.9-1 (sid) | golang-1.25 1.25.9-1 (sid) |
| debian | golang-1.19 | < golang-1.25 1.25.9-1 (sid) | golang-1.25 1.25.9-1 (sid) |
| debian | golang-1.24 | < golang-1.25 1.25.9-1 (sid) | golang-1.25 1.25.9-1 (sid) |
| debian | golang-1.25 | < golang-1.25 1.25.9-1 (sid) | golang-1.25 1.25.9-1 (sid) |
| debian | golang-1.26 | < golang-1.25 1.25.9-1 (sid) | golang-1.25 1.25.9-1 (sid) |
| github.com | opentofu_opentofu | >= 0 < 1.11.6 | 1.11.6 |
| go_standard_library | archive_tar | < 1.25.9 | 1.25.9 |
| go_standard_library | archive_tar | >= 1.26.0-0 < 1.26.2 | 1.26.2 |
| golang | go | < 1.25.9 | 1.25.9 |
| golang | go | >= 1.26.0 < 1.26.2 | 1.26.2 |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
ghsa7.5HIGH
osv5.5MEDIUM
vendor_debian5.5MEDIUM
vendor_redhat5.5MEDIUM
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
VulDB
archive-tar up to 1.25.8/1.26.1 on Go Archive resource consumption (Nessus ID 305652 / WID-SEC-2026-1006)
vuldb·2026-05-04·CVSS 5.5
CVE-2026-32288 [MEDIUM] archive-tar up to 1.25.8/1.26.1 on Go Archive resource consumption (Nessus ID 305652 / WID-SEC-2026-1006)
A vulnerability was found in archive-tar up to 1.25.8/1.26.1 on Go. It has been rated as problematic. This vulnerability affects unknown code of the component Archive Handler. The manipulation leads to resource consumption.
This vulnerability is referenced as CVE-2026-32288. Remote exploitation of the attack is possible. No exploit is available.
Upgrading the affected component is advised.
GHSA
OpenTofu has unbounded memory usage, high CPU usage, or deadlock in "tofu init" with maliciously-crafted dependency responses
ghsa·2026-04-14·CVSS 7.5
[HIGH] CWE-1395 OpenTofu has unbounded memory usage, high CPU usage, or deadlock in "tofu init" with maliciously-crafted dependency responses
OpenTofu has unbounded memory usage, high CPU usage, or deadlock in "tofu init" with maliciously-crafted dependency responses
### Impact
Unauthenticated denial of service.
### Summary
When installing module packages from attacker-controlled sources, `tofu init` may use unbounded memory, cause high CPU usage, or deadlock when encountering maliciously-crafted TLS certificate chains or tar archives.
Those who depend on modules or providers served from untrusted third-party servers may experience denial of service due to `tofu init` failing to complete successfully. In the case of unbounded memory usage or high CPU usage, other processes running on the same computer as OpenTofu may also fail or have their performance degraded due to the depletion of shared system resources.
These vulnera
GHSA
GHSA-x4jj-h2v8-hqqv: tar
ghsa_unreviewed·2026-04-08
CVE-2026-32288 GHSA-x4jj-h2v8-hqqv: tar
tar.Reader can allocate an unbounded amount of memory when reading a maliciously-crafted archive containing a large number of sparse regions encoded in the "old GNU sparse map" format.
OSV
CVE-2026-32288: tar
osv·2026-04-08·CVSS 5.5
CVE-2026-32288 [MEDIUM] CVE-2026-32288: tar
tar.Reader can allocate an unbounded amount of memory when reading a maliciously-crafted archive containing a large number of sparse regions encoded in the "old GNU sparse map" format.
OSV
Unbounded allocation for old GNU sparse in archive/tar
osv·2026-04-07
CVE-2026-32288 Unbounded allocation for old GNU sparse in archive/tar
Unbounded allocation for old GNU sparse in archive/tar
tar.Reader can allocate an unbounded amount of memory when reading a maliciously-crafted archive containing a large number of sparse regions encoded in the "old GNU sparse map" format.
Red Hat
archive/tar: golang: Go's archive/tar package: Denial of Service via maliciously-crafted archive
vendor_redhat·2026-04-08·CVSS 5.5
CVE-2026-32288 [MEDIUM] CWE-770 archive/tar: golang: Go's archive/tar package: Denial of Service via maliciously-crafted archive
archive/tar: golang: Go's archive/tar package: Denial of Service via maliciously-crafted archive
A flaw was found in Go's `archive/tar` package. A remote attacker could exploit this vulnerability by providing a maliciously-crafted archive file. When the `tar.Reader` processes an archive containing a large number of sparse regions in the "old GNU sparse map" format, it can lead to unbounded memory allocation. This can result in a Denial of Service (DoS) condition, making the affected application unresponsive.
Mitigation: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
Package: redhat-user-workloads/assist
Debian
CVE-2026-32288: golang-1.15 - tar.Reader can allocate an unbounded amount of memory when reading a maliciously...
vendor_debian·2026·CVSS 5.5
CVE-2026-32288 [MEDIUM] CVE-2026-32288: golang-1.15 - tar.Reader can allocate an unbounded amount of memory when reading a maliciously...
tar.Reader can allocate an unbounded amount of memory when reading a maliciously-crafted archive containing a large number of sparse regions encoded in the "old GNU sparse map" format.
Scope: local
bullseye: open
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2026-32288 archive/tar: golang: Go's archive/tar package: Denial of Service via maliciously-crafted archive
bugzilla·2026-04-08·CVSS 5.5
CVE-2026-32288 [MEDIUM] CVE-2026-32288 archive/tar: golang: Go's archive/tar package: Denial of Service via maliciously-crafted archive
CVE-2026-32288 archive/tar: golang: Go's archive/tar package: Denial of Service via maliciously-crafted archive
tar.Reader can allocate an unbounded amount of memory when reading a maliciously-crafted archive containing a large number of sparse regions encoded in the "old GNU sparse map" format.
Bugzilla
CVE-2026-32288 golang: Go's archive/tar package: Denial of Service via maliciously-crafted archive [fedora-all]
bugzilla·2026-04-08·CVSS 5.5
CVE-2026-32288 [MEDIUM] CVE-2026-32288 golang: Go's archive/tar package: Denial of Service via maliciously-crafted archive [fedora-all]
CVE-2026-32288 golang: Go's archive/tar package: Denial of Service via maliciously-crafted archive [fedora-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
Wiz
CVE-2026-27144 Impact, Exploitability, and Mitigation Steps | Wiz
blogs_wiz·CVSS 7.1
CVE-2026-27144 [HIGH] CVE-2026-27144 Impact, Exploitability, and Mitigation Steps | Wiz
## CVE-2026-27144 :
Golang vulnerability analysis and mitigation
The compiler is meant to unwrap pointers which are the operands of a memory move; a no-op interface conversion prevented the compiler from making the correct determination about non-overlapping moves, potentially leading to memory corruption at runtime.
Source : NVD
Published April 8, 2026
CNA Score N/A
Affected Technologies
Golang
Linux Debian
Has Public Exploit No
Has CISA KEV Exploit No
CISA KEV Release Date N/A
CISA KEV Due Date N/A
Exploitation Probability Percentile (EPSS) 0.7
Exploitation Probability (EPSS) N/A
Affected packages and libraries
golang-race
go-toolset
Sources
NVD
Debian 11, 12, 13 No Fix Added at: Apr 09, 2026
Debian 14 Has Fix Added at: Apr 09, 2026
Echo No Fix Added at: Apr 09, 202
Wiz
CVE-2026-32281 Impact, Exploitability, and Mitigation Steps | Wiz
blogs_wiz·CVSS 5.9
CVE-2026-32281 [MEDIUM] CVE-2026-32281 Impact, Exploitability, and Mitigation Steps | Wiz
## CVE-2026-32281 :
Grafana vulnerability analysis and mitigation
Validating certificate chains which use policies is unexpectedly inefficient when certificates in the chain contain a very large number of policy mappings, possibly causing denial of service. This only affects validation of otherwise trusted certificate chains, issued by a root CA in the VerifyOptions.Roots CertPool, or in the system certificate pool.
Source : NVD
Published April 8, 2026
CNA Score N/A
Affected Technologies
Grafana
Podman
Has Public Exploit No
Has CISA KEV Exploit No
CISA KEV Release Date N/A
CISA KEV Due Date N/A
Exploitation Probability Percentile (EPSS) 0.4
Exploitation Probability (EPSS) N/A
Affected packages and libraries
go-toolset:rhel8::golang-tests
grafana-mssql
Sources
NVD
Debian
Wiz
CVE-2026-32288 Impact, Exploitability, and Mitigation Steps | Wiz
blogs_wiz·CVSS 5.9
CVE-2026-32288 [MEDIUM] CVE-2026-32288 Impact, Exploitability, and Mitigation Steps | Wiz
## CVE-2026-32288 :
Grafana vulnerability analysis and mitigation
tar.Reader can allocate an unbounded amount of memory when reading a maliciously-crafted archive containing a large number of sparse regions encoded in the "old GNU sparse map" format.
Source : NVD
Published April 8, 2026
CNA Score N/A
Affected Technologies
Grafana
Podman
Has Public Exploit No
Has CISA KEV Exploit No
CISA KEV Release Date N/A
CISA KEV Due Date N/A
Exploitation Probability Percentile (EPSS) 0.8
Exploitation Probability (EPSS) N/A
Affected packages and libraries
grafana-postgres
golang-1.26
Sources
NVD
Debian 11, 12, 13 No Fix Added at: Apr 09, 2026
Debian 14 Has Fix Added at: Apr 09, 2026
Echo No Fix Added at: Apr 09, 2026
Red Hat 8, 9, 10 Severity MEDIUM No Fix Added at: Apr 09, 2026
Wiz
CVE-2026-32283 Impact, Exploitability, and Mitigation Steps | Wiz
blogs_wiz·CVSS 6.4
CVE-2026-32283 [MEDIUM] CVE-2026-32283 Impact, Exploitability, and Mitigation Steps | Wiz
## CVE-2026-32283 :
Golang vulnerability analysis and mitigation
If one side of the TLS connection sends multiple key update messages post-handshake in a single record, the connection can deadlock, causing uncontrolled consumption of resources. This can lead to a denial of service. This only affects TLS 1.3.
Source : NVD
Published April 8, 2026
CNA Score N/A
Affected Technologies
Golang
Linux Debian
Has Public Exploit No
Has CISA KEV Exploit No
CISA KEV Release Date N/A
CISA KEV Due Date N/A
Exploitation Probability Percentile (EPSS) 0.5
Exploitation Probability (EPSS) N/A
Affected packages and libraries
golang-1.15
golang-1.19
Sources
NVD
Debian 11, 12, 13 No Fix Added at: Apr 09, 2026
Debian 14 Has Fix Added at: Apr 09, 2026
Echo No Fix Added at: Apr 09, 2026
Linux
Wiz
CVE-2026-27140 Impact, Exploitability, and Mitigation Steps | Wiz
blogs_wiz·CVSS 8.8
CVE-2026-27140 [HIGH] CVE-2026-27140 Impact, Exploitability, and Mitigation Steps | Wiz
## CVE-2026-27140 :
Golang vulnerability analysis and mitigation
SWIG file names containing 'cgo' and well-crafted payloads could lead to code smuggling and arbitrary code execution at build time due to trust layer bypass.
Source : NVD
Published April 8, 2026
CNA Score N/A
Affected Technologies
Golang
Linux Debian
Has Public Exploit No
Has CISA KEV Exploit No
CISA KEV Release Date N/A
CISA KEV Due Date N/A
Exploitation Probability Percentile (EPSS) 0.6
Exploitation Probability (EPSS) N/A
Affected packages and libraries
golang-1.19
golang-1.24
Sources
NVD
Debian 11, 12, 13 No Fix Added at: Apr 09, 2026
Debian 14 Has Fix Added at: Apr 09, 2026
Echo No Fix Added at: Apr 09, 2026
Linux Has Fix Added at: Apr 09, 2026
Windows Has Fix Added at: Apr 09, 2026
## Get a CVE
Wiz
CVE-2026-32280 Impact, Exploitability, and Mitigation Steps | Wiz
blogs_wiz·CVSS 7.5
CVE-2026-32280 [HIGH] CVE-2026-32280 Impact, Exploitability, and Mitigation Steps | Wiz
## CVE-2026-32280 :
Golang vulnerability analysis and mitigation
During chain building, the amount of work that is done is not correctly limited when a large number of intermediate certificates are passed in VerifyOptions.Intermediates, which can lead to a denial of service. This affects both direct users of crypto/x509 and users of crypto/tls.
Source : NVD
## 7.5
Score
Published April 8, 2026
Severity HIGH
CNA Score 7.5
Affected Technologies
Golang
Linux Debian
Has Public Exploit No
Has CISA KEV Exploit No
CISA KEV Release Date N/A
CISA KEV Due Date N/A
Exploitation Probability Percentile (EPSS) 3.5
Exploitation Probability (EPSS) N/A
Affected packages and libraries
golang-1.15
golang-1.19
Sources
NVD
Debian 11, 12, 13 Severity HIGH No Fix Added at: Apr 09, 2026
Wiz
CVE-2026-33810 Impact, Exploitability, and Mitigation Steps | Wiz
blogs_wiz·CVSS 6.4
CVE-2026-33810 [MEDIUM] CVE-2026-33810 Impact, Exploitability, and Mitigation Steps | Wiz
## CVE-2026-33810 :
Golang vulnerability analysis and mitigation
When verifying a certificate chain containing excluded DNS constraints, these constraints are not correctly applied to wildcard DNS SANs which use a different case than the constraint. This only affects validation of otherwise trusted certificate chains, issued by a root CA in the VerifyOptions.Roots CertPool, or in the system certificate pool.
Source : NVD
Published April 8, 2026
CNA Score N/A
Affected Technologies
Golang
Linux Debian
Has Public Exploit No
Has CISA KEV Exploit No
CISA KEV Release Date N/A
CISA KEV Due Date N/A
Exploitation Probability Percentile (EPSS) 0.3
Exploitation Probability (EPSS) N/A
Affected packages and libraries
cpe:2.3:a:golang:go
golang-1.26
Sources
NVD
Debian 14 Has Fix Adde
Wiz
CVE-2026-27143 Impact, Exploitability, and Mitigation Steps | Wiz
blogs_wiz·CVSS 9.8
CVE-2026-27143 [CRITICAL] CVE-2026-27143 Impact, Exploitability, and Mitigation Steps | Wiz
## CVE-2026-27143 :
Golang vulnerability analysis and mitigation
Arithmetic over induction variables in loops were not correctly checked for underflow or overflow. As a result, the compiler would allow for invalid indexing to occur at runtime, potentially leading to memory corruption.
Source : NVD
Published April 8, 2026
CNA Score N/A
Affected Technologies
Golang
Linux Debian
Has Public Exploit No
Has CISA KEV Exploit No
CISA KEV Release Date N/A
CISA KEV Due Date N/A
Exploitation Probability Percentile (EPSS) 0.6
Exploitation Probability (EPSS) N/A
Affected packages and libraries
golang-1.24
golang-1.25
Sources
NVD
Debian 11, 12, 13 No Fix Added at: Apr 09, 2026
Debian 14 Has Fix Added at: Apr 09, 2026
Echo No Fix Added at: Apr 09, 2026
Red Hat 8, 9, 10 Severity MED
Wiz
CVE-2026-32289 Impact, Exploitability, and Mitigation Steps | Wiz
blogs_wiz·CVSS 5.9
CVE-2026-32289 [MEDIUM] CVE-2026-32289 Impact, Exploitability, and Mitigation Steps | Wiz
## CVE-2026-32289 :
Grafana vulnerability analysis and mitigation
Context was not properly tracked across template branches for JS template literals, leading to possibly incorrect escaping of content when branches were used. Additionally template actions within JS template literals did not properly track the brace depth, leading to incorrect escaping being applied. These issues could cause actions within JS template literals to be incorrectly or improperly escaped, leading to XSS vulnerabilities.
Source : NVD
Published April 8, 2026
CNA Score N/A
Affected Technologies
Grafana
Podman
Has Public Exploit No
Has CISA KEV Exploit No
CISA KEV Release Date N/A
CISA KEV Due Date N/A
Exploitation Probability Percentile (EPSS) 1.4
Exploitation Probability (EPSS) N/A
Affected packages
Wiz
CVE-2026-32282 Impact, Exploitability, and Mitigation Steps | Wiz
blogs_wiz·CVSS 5.9
CVE-2026-32282 [MEDIUM] CVE-2026-32282 Impact, Exploitability, and Mitigation Steps | Wiz
## CVE-2026-32282 :
Grafana vulnerability analysis and mitigation
On Linux, if the target of Root.Chmod is replaced with a symlink while the chmod operation is in progress, Chmod can operate on the target of the symlink, even when the target lies outside the root. The Linux fchmodat syscall silently ignores the AT_SYMLINK_NOFOLLOW flag, which Root.Chmod uses to avoid symlink traversal. Root.Chmod checks its target before acting and returns an error if the target is a symlink lying outside the root, so the impact is limited to cases where the target is replaced with a symlink between the check and operation.
Source : NVD
Published April 8, 2026
CNA Score N/A
Affected Technologies
Grafana
Podman
Has Public Exploit No
Has CISA KEV Exploit No
CISA KEV Release Date N/A
CISA KEV Due
2026-04-08
Published