Trending
CVE-2026-12958

CVE detail

CVE-2026-12958

Missing symlink validation in Language Servers for AWS may allow an arbitrary file write outside of the workspace trust boundary. This may occur when a local user opens a workspace with a maliciously crafted symlink that resolves to a file path outside the workspace trust boundary. To remediate this issue, users should upgrade to version 1.69.0 or higher.

CVSS 8.5 · HighBuzz score 32.6

Buzz score

Why this CVE is surfacing

Buzz score total 32.6

This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.

Buzz score components · mention 16.1 · diversity 16.5 · KEV 0.0 · OTX 0.0 · PoC 0.0

Mention score

16.1

4 evidence mentions in the snapshot

Diversity score

16.5

4 sources across 3 categories

KEV score

0.0

No KEV entry observed

OTX score

0.0

0 OTX pulses

PoC score

0.0

0 repos · best confidence N/A

Best PoC traction

Maximum stars on a matched PoC repo

Why it matters now

Mention timeline

Total mentions: 1; within the 30d window
Peak daily: 1; highest bucket

Evidence

Source links by recency

Newest mentions first

4 source links · newest first

Bug in top AI coding agents shows that Unix-era security headaches never really dieThe Register Security
and patched the flaw. Amazon classified this as a high-severity, pre-authorization write bug in Q Developer, and issued CVE-2026-12958 to describe it. Amazon also fixed the flaw. Cursor took a similar approach, issuing CVE-2026-50549 and fixing the flaw in its v3.0 update. Google deemed it a critical bug in Antigravity and fixed it. “We've been working
newswww.theregister.comJul 8, 2026, 2:00 PM
Amazon Q Flaw Enabled Cloud Credential Theft via Malicious RepositoriesSecurityWeek
AWS has patched the vulnerability and published its own advisory to inform customers about the potential impact.
newswww.securityweek.comJun 26, 2026, 3:23 PM
https://github.com/aws/language-servers/security/advisories/GHSA-6v3r-4p5c-mrp5github.com
No excerpt available.
Exploitgithub.comJun 23, 2026, 5:16 PM
https://aws.amazon.com/security/security-bulletins/2026-047-aws/aws.amazon.com
No excerpt available.
Vendor Advisoryaws.amazon.comJun 23, 2026, 5:16 PM

Exploit code

Public exploit repository references

Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.

0 repository references · best confidence N/A · max 0 stars

No public PoC repositories have been matched yet.

Related records

Similar CVEs

6 related CVEs with shared weakness or product evidence

CVE-2026-54574
proot-distro is a utility for managing proot containers. Prior to version 5.1.5, proot-distro install extracted plain tarball root filesystems through _extract_plain_tar() in proo…
CVSS 8.2 · High
3 mentions
CVE-2026-56748
Improper validation of symbolic links in the Pack Git import feature in Cribl Stream before 4.18.2 allows a remote authenticated attacker with Pack import and pipeline preview per…
CVSS 8.7 · High
2 mentions
CVE-2026-17459
A vulnerability was determined in perwendel spark up to 2.9.4. This vulnerability affects the function staticFiles.externalLocation of the file src/main/java/spark/resource/Extern…
CVSS 2.1 · Low
6 mentions
CVE-2026-65010
Datasets through 5.00, fixed in commit ad2d853, contains a symlink-following vulnerability in Extractor.extract() that allows local attackers to write arbitrary files by pre-plant…
CVSS 4.4 · Medium
4 mentions
CVE-2026-12080
A flaw was found in the QEMU Guest Agent (qga). A local unprivileged user can exploit a vulnerability in the guest-ssh-add-authorized-keys command handler by manipulating symbolic…
CVSS 7.3 · High
4 mentions
CVE-2026-59674
A UNIX Symbolic Link (Symlink) Following vulnerability in openSUSE Tumbleweed suricata package allows the suricata user to escalate to root. This issue affects openSUSE Tumb…
CVSS 7.1 · High
1 mention

External lookup

Potential internet exposure

Potential exposure only — not proof of vulnerability.Shodan results indicate potentially internet-exposed products, not confirmed vulnerable systems. They do not confirm that any returned system is vulnerable to CVE-2026-12958.

Product-level CPE searches intentionally omit version fields and NVD version-range or configuration certainty. Verify the exact product version and configuration independently.

Sign-in required. Shodan requires you to sign in to run these filter searches.

Product CPE queries

Derived from this CVE's existing NVD CPE 2.3 records; the application, operating-system, or hardware part is retained.

Product query unavailableNo valid raw CPE 2.3 product record is available for this CVE, so no product-level Shodan query is shown.

Exact CVE query

Eligible paid Shodan plan required

Shodan's exact vuln: filter is separate from the product searches above and requires an eligible paid Shodan plan.

vuln:CVE-2026-12958Search this CVE on Shodan

These are outbound search links only. cvebuzz makes no Shodan API call, uses no Shodan API key, and does not display live result counts.

Metadata

Canonical fields

NVD status

Unavailable

Published

Jun 23, 2026

Modified

Jun 23, 2026

Official record

Authoritative NVD record

CVSS vector

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CWE IDs

Vendor classifications

Unavailable

How this vector reads

CVSS 4.0 base metrics decoded below. This explanation does not recalculate or change the NVD score.

Attack Vector (AV): Local. The attacker needs local access to the vulnerable system.
Attack Complexity (AC): Low. No special conditions beyond the attacker-controlled steps are required.
Attack Requirements (AT): None. No prerequisite deployment or execution condition is required.
Privileges Required (PR): None. The attacker needs no privileges on the vulnerable system.
User Interaction (UI): Passive. A targeted user must unknowingly interact with the vulnerable system.
Vulnerable System Confidentiality (VC): High. There is a total or serious impact to this security property.
Vulnerable System Integrity (VI): High. There is a total or serious impact to this security property.
Vulnerable System Availability (VA): High. There is a total or serious impact to this security property.
Subsequent System Confidentiality (SC): None. There is no direct impact to this security property.
Subsequent System Integrity (SI): None. There is no direct impact to this security property.
Subsequent System Availability (SA): None. There is no direct impact to this security property.

Optional CVSS v4 metrics remain in the raw vector; only base metrics are expanded here.

Signals

Exploitation indicators

0 stored signals · no KEV · 0 OTX pulses