CVE-2026-2303VulnerabilityPublished 6 Oct 2026Updated 10 Nov 2026

SUSE · Security update for alloy

Affects SUSESource GCVE Database

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Mentioned vulnerabilities

Authoritative record:CVE-2026-2303· Medium 6.9

Not known to be exploited · CVSS 6.9 Medium : upgrade SUSE to 2.4.2 or 1.17.7 when convenient.

Data as of 10 Nov 2026, 20:06 UTC

CVSS 4.0 base score

6.9Medium

How severe the flaw is on the 0–10 CVSS scale.

Patch: Available – fixed in 2.4.2, 1.17.7

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

Attack Vector: Network
Attack Complexity: Low
Attack Requirements: None
Privileges Required: Low
User Interaction: Passive
Vulnerable system confidentiality: None
Vulnerable system integrity: High
Vulnerable system availability: None
Subsequent system confidentiality: None
Subsequent system integrity: None
Subsequent system availability: None

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable system is bound to the network stack and the set of possible attackers extends beyond the other options listed below, up to and including the entire Internet. Such a vulnerability is often termed “remotely exploitable” and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: The attacker must take no measurable action to exploit the vulnerability. The attack requires no target-specific circumvention to exploit the vulnerability. An attacker can expect repeatable success against the vulnerable system.
Attack Requirements: None: The successful attack does not depend on the deployment and execution conditions of the vulnerable system. The attacker can expect to be able to reach the vulnerability and execute the exploit under all or most instances of the vulnerability.
Privileges Required: Low: The attacker requires privileges that provide basic capabilities that are typically limited to settings and resources owned by a single low-privileged user. Alternatively, an attacker with Low privileges has the ability to access only non-sensitive resources.
User Interaction: Passive: Successful exploitation of this vulnerability requires limited interaction by the targeted user with the vulnerable system and the attacker’s payload. These interactions would be considered involuntary and do not require that the user actively subvert protections built into the vulnerable system.
Vulnerable system confidentiality: None: There is no loss of confidentiality within the Vulnerable System.
Vulnerable system integrity: High: There is a total loss of integrity, or a complete loss of protection. For example, the attacker is able to modify any/all files protected by the vulnerable system. Alternatively, only some files can be modified, but malicious modification would present a direct, serious consequence to the vulnerable system.
Vulnerable system availability: None: There is no impact to availability within the Vulnerable System.
Subsequent system confidentiality: None: There is no loss of confidentiality within the Subsequent System or all confidentiality impact is constrained to the Vulnerable System.
Subsequent system integrity: None: There is no loss of integrity within the Subsequent System or all integrity impact is constrained to the Vulnerable System.
Subsequent system availability: None: There is no impact to availability within the Subsequent System or all availability impact is constrained to the Vulnerable System.

Definitions: FIRST CVSS v4.0 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 10 Feb 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 10 Nov 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade MongoDB Go Driver to 2.4.2 or 1.17.7.

Affected software

Product	Affected	Fixed in
MongoDB IncMongoDB Go Driver	Affected >=2.0.0 <2.4.2	Fixed in 2.4.2
MongoDB IncMongoDB Go Driver	Affected >=1.0.0 <1.17.7	Fixed in 1.17.7

Description

This update for alloy fixes the following issues: - CVE-2026-2303: go.mongodb.org/mongo-driver: mongo-go-driver has Heap Out-of-Bounds Read in GSSAPI Error Handling (bsc#1269861). - CVE-2026-37236: github.com/grpc-ecosystem/grpc-gateway/v2/runtime: client can override the HTTP method of a POST request through the X-HTTP-Method-Override header and bypass established access control (bsc#1277996). - CVE-2026-41178: go.opentelemetry.io/otel/baggage: no rejection of raw-length headers in baggage parsing allows for DoS via oversized inputs (bsc#1276742). - CVE-2026-45679: go.opentelemetry.io/obi: Redis error text is exported in span status messages and can lead to exfiltration of sensitive data (bsc#1267482). - CVE-2026-45680: go.opentelemetry.io/obi: unbounded BPF internal metrics replay can exhaust CPU and cause a DoS (bsc#1267483). - CVE-2026-45681: go.opentelemetry.io/obi: CPU-mismatch fallback uses 256-byte buffer with 8KB size and can cause OBI out-of-bounds reads to leak memory into telemetry (bsc#1267484). - CVE-2026-45683: go.opentelemetry.io/obi: Java TLS ioctl kprobe allows a user to point OBI at kernel memory and cause that memory to be copied into telemetry (bsc#1267486). - CVE-2026-45684: go.opentelemetry.io/obi: log enricher mishandled `writev` buffers and allows multi-segment calls to read and overwrite memory beyond the first segment (bsc#1267487). - CVE-2026-46600: golang.org/x/net/dns/dnsmessage: Parsing an invalid SVCB or HTTPS RR can panic when the size of a parameter value overflows the message buffer (bsc#1272418). - CVE-2026-48496: opentelemetry-ebpf-profiler: Unprivileged process can trigger a denial of service on the ebpf-profiler agent (bsc#1268982). - CVE-2026-56852: golang.org/x/text/unicode/norm: infinite loop on truncated/invalid UTF-8 input (bsc#1272028). - CVE-2026-56854,CVE-2026-56855,CVE-2026-78662: golang.org/x/crypto/ssh: authentication bypass and deadlocks in the crypto/ssh library (bsc#1278671). - CVE-2026-71556: github.com/go-git/go-git/v5: Arbitrary file read/write via symbolic link resolution (bsc#1276982). - CVE-2026-71557: github.com/go-git/go-git/v5: Malicious reference names may modify files outside the reference storage (bsc#1276992). - CVE-2026-75889: arbitrary file reads due to the `prometheus.operator.servicemonitors` component allowing users who can modify `ServiceMonitor` resources in a watched namespace to specify an arbitrary local file through `bearerTokenFile` (bsc#1277429). - CVE-2026-81521: go.mongodb.org/mongo-driver: MongoDB Go Driver: Write redirection via unvalidated database name in Client.BulkWrite (bsc#1278693). - CVE-2026-89090: github.com/aws/aws-sdk-go-v2/aws/protocol/eventstream: malformed EventStream response frames containing a crafted header value type byte outside the valid range can cause the host process to terminate (bsc#1280671). Changes for alloy: Update to version 1.19.2: * Remove withdrawn lib/pq CVEs from govulncheck * Add backticks to component name in generated doc output * BREAKING CHANGE: prometheus.operator.servicemonitors now rejects endpoints that reference local files by default. Set allow_arbitrary_file_access = true to preserve previous behavior. * prometheus.enrich: Support multi-label matching * prometheus.relabel: Add opt-in TTL cache mode * telemetry: Add new metrics for graph connections and pyroscope forwarded entries * database_observability: Exclude system schemas from MySQL health checks and redact query text in explain_plans * Add nop receiver to OTel Engine * Backport dependency upgrades to address GO-2026-6061

GCVE source: db.gcve.eu
Csaf Category: csaf_security_advisory
Csaf Version: 2.0
Publisher: SUSE Product Security Team
Advisory ID: openSUSE-SU-2026:22032-1
Vendor Severity: high
CVE Count: 19
Additional Cves: CVE-2026-37236, CVE-2026-41178, CVE-2026-45679, CVE-2026-45680, CVE-2026-45681, CVE-2026-45683, CVE-2026-45684, CVE-2026-46600, CVE-2026-48496, CVE-2026-56852, CVE-2026-56854, CVE-2026-56855, CVE-2026-71556, CVE-2026-71557, CVE-2026-75889, CVE-2026-78662, CVE-2026-81521, CVE-2026-89090

References

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