The extortion group ShinyHunters claimed on its dark web site that it breached the FBI and stole data on current and former employees and job applicants, naming Criminal Justice, HR, and Medlink services. A spokesperson told The Register the group exploited a new Oracle PeopleSoft zero-day to gain remote code execution and deface the FBI jobs site. The claim, first reported by 404 Media, is unverified, and the FBI has not confirmed any compromise. ShinyHunters framed it as retaliation for a May FBI advisory about its Canvas targeting, disputing those allegations and rejecting reported ties to the wider criminal collective. Treat the specifics as an attacker claim pending independent confirmation.
Attackers are actively exploiting an unpatched zero-day in Magento Open Source and Adobe Commerce to run code on stores' servers without logging in, according to e-commerce security firm Sansec, which named it StyleSmuggler. Exploitation began September 4, and every current version is affected, including the latest 2.4.9; Sansec even found a fully patched store already compromised. The attack manipulates a styles field in a GraphQL request to inject PHP into a file the platform generates normally, then installs a persistent backdoor. As of disclosure, Adobe had not issued an advisory, a CVE, or a fix, so exposed stores should be treated as at risk and watched for compromise.
A researcher known as Chaotic Eclipse, or Nightmare Eclipse, publicly released two unpatched privilege-escalation zero-day exploits targeting security software, without coordinating with the vendors. One, called HardBreacher, targets Kaspersky Endpoint Security and can disrupt the antivirus and its file-access controls while creating a system-level file. The other, PrettyPrague, escapes the Avast sandbox to dump the Windows account database and spawn a SYSTEM-level shell, and reportedly works on fully patched Avast and Windows 11. The researcher suspects it may also affect other Gen Digital products like AVG and Norton. Because there are no CVEs or patches yet, endpoints are exposed, and security tools' high privileges make them valuable targets.
PaperCut warned that attackers are actively exploiting vulnerabilities in all versions of its widely deployed NG and MF print-management software, and confirmed real customer incidents. Two flaws are involved: CVE-2026-82078, unsafe dynamic class loading in the database connection utilities that lets an attacker run arbitrary Java bytecode, and CVE-2026-81578, an access-control flaw in the web management interface that lets an unauthenticated attacker change system configuration. PaperCut released emergency out-of-cycle patches for its version 25 and 26 branches, with a version 24 build still in progress, and later issued a hardened second release. PaperCut servers have a history of being targeted by ransomware crews.
A newly disclosed zero-day in GeoServer, the widely used open-source geospatial server, is already drawing exploitation attempts, according to watchTowr. The flaw is a SQL injection issue that can lead to remote code execution, and it remains unpatched, with no CVE assigned yet. It was first disclosed publicly by a researcher on August 12, and attackers commonly begin probing internet-facing servers as soon as such details appear. GeoServer instances are frequently exposed to the internet to serve mapping and location data, which makes an unpatched code-execution flaw in the platform an attractive and reachable target. Defenders should treat exposed instances as at risk until a fix ships.
Metabase warned that a critical zero-day in its open-source business intelligence platform was exploited in the wild for data theft. Scored 10.0 and tracked only as GHSA-vwf4-m7j8-wcjf with no CVE assigned, so scanners relying on the national database will not flag it, the flaw is an unauthenticated SQL injection in the password-reset endpoint. A remote attacker with no credentials injects SQL into the application database, gains administrator access, and can steal the stored credentials for every database the instance connects to, then read and export their data. Metabase Cloud was attacked from around August 3 and is already patched; self-hosted versions 1.58 and later must upgrade.
Incident response firm Volexity detailed how attackers chained two SonicWall SMA1000 flaws as zero-days weeks before the vendor disclosed them, reaching root and installing malware built specifically for the appliances. A previously unknown actor it tracks as UTA0533 began exploiting on June 22, nearly three weeks before the July 14 advisory. The chain starts with CVE-2026-15409 against the /wsproxy endpoint, letting an unauthenticated attacker open WebSocket tunnels to services meant to be reachable only from the appliance itself, then uses CVE-2026-15410 for command execution. With root, the actor could read stored credentials, capture traffic, and intercept credentials the appliance processes.
Less than an hour after Microsoft's July Patch Tuesday, the researcher known as Nightmare Eclipse published a proof-of-concept for LegacyHive, a Windows privilege-escalation flaw that works on fully updated systems. It abuses the Windows User Profile Service to let a standard user load another user's registry hive, including an administrator's, into their own profile, a useful stepping stone for an attacker who already has a foothold. There is no CVE, advisory, or patch. The public proof-of-concept was deliberately stripped down, needing extra credentials, but the researcher says the original had no such limits. Given this researcher's flaws have been weaponized quickly before, defenders should not wait for a fix.
Microsoft shipped its largest Patch Tuesday on record, fixing 622 vulnerabilities, more than triple June's previous high, and two of them are already being exploited. Both live bugs are privilege-escalation flaws in identity and collaboration infrastructure rather than flashy remote code execution: CVE-2026-56164 in on-premises SharePoint Server lets an unauthenticated attacker escalate over the network, and CVE-2026-56155 in Active Directory Federation Services lets an authenticated attacker gain higher privileges, both found by incident responders inside real attacks. A third zero-day, a BitLocker bypass needing physical access, was publicly disclosed but not exploited. The sheer volume, driven partly by AI-assisted bug finding, makes prioritizing by exploitation status, not severity score, essential this month.
The ShinyHunters data-theft wave against Oracle PeopleSoft, covered yesterday, now has a confirmed root cause: a zero-day. Oracle has issued an out-of-band emergency mitigation for CVE-2026-35273, a critical flaw (rated 9.8) in PeopleSoft PeopleTools that lets an unauthenticated attacker run code on the server over HTTP, with no login required. Google's Mandiant says the bug was exploited from May 27 to June 9, before any advisory existed, and notified more than 100 affected organizations, 68 percent of them universities. The exposed component is the Environment Management Hub. Affected versions are PeopleTools 8.61 and 8.62; a full patch is still pending.
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